ILLUSTRATIVE OF PHILIDOR'S DEFENCE.

Game I.—Mr. Morphy plays without seeing the Chess board or men, against M. Boucher, at Paris.

WHITE. (Mr. M.) BLACK. (M. B.)
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to K. B's 3d. 2. P. to Q's 3d.
3. P. to Q's 4th. 3. P. takes P.
4. Q. takes P. 4. Q. Kt. to Q. B's 3d.
5. K. B. to Q. Kt's 5th. 5. Q. B. to Q's 2d.
6. B. takes Kt. 6. B. takes B.
7. B. to K. Kt's 5th. 7. P. to K. B's 3d.
8. B. to K. R's 4th. 8. Kt. to K. R's 3d.
9. Q. Kt. to Q. B's 3d. 9. K. B. to K's 2d.
10. Castles on K's side.10. Castles.
11. Q. to Q. B's 4th. (ch.)11. K. to R's sq.
12. K. Kt. to Q's 4th.12. Q. to her 2d.
13. Q. R. to Q's sq.13. K. R. to K. B's 2d.
14. P. to K. B's 4th.14. P. to Q. R's 4th.
15. P. to K. B's 5th.15. K. R. to K. B's sq.
16. K. Kt. to K's 6th.16. K. R. to K. Kt's sq.
17. P. to Q. R's 4th.17. Kt. to Kt's 5th.
18. Q. to K's 2d.18. Kt. to K's 4th.
19. B. to K. Kt's 3d.19. Q. to Q. B's sq.[A]
20. B. takes Kt.20. Q. P. takes B.
21. K. R. to K. B's 3d.[B]21. Q. B. to Q's 2d.[C]
22. K. R. to K. R's 3d.[D]22. P. to K. R's 3d.
23. Q. to Q's 2d.23. K. to R's 2d.[E]
24. Q. takes Q. B.24. B. to Q's 3d.
25. K. R. takes K. R. P. (ch.)[F]25. K. takes R.
26. R. to Q's 3d.[G]26. K. to R's 4th.
27. Q. to K. B's 7th. (ch.)
And wins; the battle having lasted about seven hours.

[A] To enable him to capture the Bishop, which is about to take the Kt., with the Q's Pawn.

[B] The attack looks already irresistible, but the actual finish is charmingly accomplished.

[C] By this move Black may be said to lose a Piece. His best course—but that a bad one—was possibly to retreat his Bishop to K's square.

[D] Threatening mate in two moves.

[E] To avert the promised mate, by R. takes Pawn, &c.

[F] The termination is very pretty—quite an elegant little problem.

[G] And Black has no possible means of escape; for, if he play Q. to K's sq., White simply captures the Queen for nothing; if B. to Q. B's 4th (ch.), then follows K. to B's sq., &c.

Game II.—Between Mr. Morphy and Mr. Harrwitz.

WHITE. (Mr. M.) BLACK. (Mr. H.)
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to K. B's 3d. 2. P. to Q's 3d.
3. P. to Q's 4th. 3. P. takes P.
4. Q. takes P. 4. Q. Kt. to Q. B's 3d.
5. K. B. to Q. Kt's 5th. 5. Q. B. to Q's 2d.
6. B. takes Kt. 6. B. takes B.
7. B. to K. Kt's 5th. 7. P. to K. B's 3d.
8. B. to K. R's 4th. 8. Kt. to K. R's 3d.
9. Q. Kt. to B's 3d. 9. K. B. to K's 2d.
10. Castles on K's side.10. Q. to Q's 2d.
11. Q. R. to Q's sq.11. Castles on K's side.
12. Q. to B's 4th. (ch.)12. K. R. to K. B's 2d.
13. K. Kt. to Q's 4th.13. Kt. to K. Kt's 5th.
14. P. to K. R's 3d.14. Kt. to K's 4th.
15. Q. to K's 2d.15. P. to K. Kt's 4th.[A]
16. B. to K. Kt's 3d.16. K. R. to K. Kt's 2d.
17. K. Kt. to K. B's 5th.17. K. R. to K. Kt's 3d.
18. P. to K. B's 4th.18. P. takes P.
19. K. R. takes P.19. K. to R's sq.
20. K. R. to K. R's 4th.20. K. B. to his sq.
22. Q. R. to K. B's sq.22. Q. to K's 3d.
23. Q. Kt. to Q. Kt's 5th.23. Q. to K. Kt's sq.
24. Q. R. to K. B's 2d.24. P. to Q. R's 3d.
25. Q. Kt. takes Q. B. P.[B]25. Q. R. to Q. B's sq.
26. Q. Kt. to Q's 5th.26. B. takes Kt.
27. K. P. takes B.27. Q. R. to Q. B's 2d.[C]
28. P. to Q. B's 4th.28. B. to K's 2d.
29. K. R. to K. R's 5th.29. Q. to K's sq.
30. P. to Q. B's 5th.[D]30. Q. R. takes P.
31. K. R. takes P. (ch.)31. K. takes R.
32. Q. to K. R's 5th. (ch.)32. K. to Kt. sq.
33. Kt. takes B. (ch.)33. K. to Kt's 2d.[E]
34. Kt. to K. B's 5th. (ch.)34. K. to Kt's sq.
35. Kt. takes Q. P.
And Black cannot possibly save the game.

[A] Very imprudent in such a position and against such an opponent. It must be admitted, however, that Black has no good move at this crisis.

[B] Perfectly sound, as the sequel shows.

[C] Taking the Pawn would have been injudicious; for example,

27. Q. takes Pawn.
28. K. R. takes K. R. P. (ch.)28. K. takes R. (best).
29. Q. to K. R's 5th. (ch.)29. B. to K. R's 3d.
30. Kt. takes B.30. K. R. takes Kt.
31. Q. to K. B's 5th. (ch.)31. Anything.
32. Q. takes Q. R., &c.

[D] The first step in a combination of admirable daring and ingenuity.

[E] Had he taken the Knight it would have cost him his Queen.

Game III.—Between Mr. Morphy and Mr. Harrwitz.

WHITE. (Mr. M.) BLACK. (Mr. H.)
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to K. B's 3d. 2. P. to Q's 3d.
3. P. to Q's 4th. 3. P. takes P.
4. Q. takes P. 4. Q. Kt. to Q. B's 3d.
5. K. B. to Q. Kt's 5th. 5. Q. B. to Q's 2d.
6. B. takes Kt. 6. B. takes B.
7. B. to K. Kt's 5th. 7. Kt. to K. B's 3d.
8. Q. Kt. to Q. B's 3d. 8. K. B. to K's 2d.
9. Castles on Q's side. 9. Castles.
10. K. R. to K's sq.10. P. to K. R's 3d.
11. B. to K. R's 4th.11. Kt. to K's sq.
12. B. takes B.12. Q. takes B.
13. P. to K's 5th.13. B. takes Kt.
14. P. takes B.14. Q. to K. Kt's 4th. (ch.)
15. K. to Q. Kt's sq.15. P. takes P.
16. K. R. takes P.16. Q. to K. Kt's 7th.
17. Kt. to Q's 5th.17. Q. takes K. R. P.
18. K. R. to K's sq.18. Q. to Q's 3d.
19. K. R. to K. Kt's sq.19. K. to K. R's 2d.
20. Q. to K's 3d.20. P. to K. B's 4th.
21. Kt. to K. B's 4th.21. Q. to Q. Kt's 3d.
22. Q. to K's 2d.22. K. R. to K. B's 2d.
23. Q. to Q. B's 4th.23. Q. to K. B's 3d.
24. Kt. to K. R's 5th.[A]24. Q. to K's 2d.
25. Q. R. to K's sq.25. Q. to Q's 2d.
26. P. to Q. R's 3d.26. Kt. to Q's 3d.
27. Q. to Q's 4th.27. Q. R. to K. Kt's sq.
28. K. R. to K. Kt's 2d.28. P. to Q. Kt's 3d.
29. Q. R. to K. Kt's sq.29. Kt. to K's sq.
30. Q. to Q. B's 3d.30. P. to K. B's 5th.[B]
31. Q. R. to K. R's sq.[C]31. P. to K. Kt's 3d.
32. Q. R. to K. Kt's sq.32. Q. to Q's 4th.
33. Q. to K's sq.33. P. takes Kt.
34. K. R. to Kt's 5th.[D]34. Q. takes P.
35. Q. to K's 5th.35. K. R. to K. B's 3d.
36. Q. to K's 7th. (ch.)36. Q. R. to K. Kt's 2d.
37. Q. takes Kt.37. P. takes R.
38. Q. to K's sq.38. Q. to Q. B's 3d.
39. P. to K. B's 3d.39. K. R. to K's 3d.
40. Q. to K. B's 2d.40. Q. R. to K's 2d.
And White abandoned the game.

[A] This looks promising, but does not turn out well. He had better, perhaps, have played K. R. to K. Kt's 6th.

[B] Well played. White must now beware, for his Kt. is in sore peril.

[C] This will not save the Kt. The best move was K. R. to Kt's 4th.

[D] Merely desperate.

Game IV.—Between Mr. Morphy and Mr. Bird of London.

WHITE. (Mr. B.) BLACK. (Mr. M.)
1. P. to K's 4th. 1. P. to K's 4th.
2. Kt. to K. B's 3d. 2. P. to Q's 3d.
3. P. to Q's 4th. 3. P. to K. B's 4th.
4. Kt. to Q. B's 3d. 4. K. B. P. takes P.
5. Q. Kt. takes P. 5. P. to Q's 4th.
6. Kt. to K. Kt's 3d. 6. P. to K's 5th.
7. Kt. to K's 5th. 7. Kt. to K. B's 3d.
8. Q. B. to K. Kt's 5th. 8. B. to Q's 3d.
9. Kt. to K. R's 5th. 9. Castles.
10. Q. to Q's 2d.10. Q. to K's sq.
11. P. to K. Kt's 4th.11. Kt. takes K. Kt. P.
12. Kt. takes Kt.12. Q. takes Kt.
13. Kt. to K's 5th.13. Kt. to Q. B's 3d.
14. B. to K's 2d.14. Q. to K. R's 6th.
15. Kt. takes Kt.15. P. takes Kt.
16. B. to K's 3d.16. R. to Q. Kt's sq.
17. Castles (Q. R.)17. R. takes K. B. P.
18. B. takes R.18. Q. to Q. R's 6th.
19. P. to Q. B's 3d.19. Q. takes Q. R. P.
20. P. to Q. Kt's 4th.20. Q. to Q. R's 8th. (ch.)
21. K. to B's 2d.21. Q. to R's 5th. (ch.)
22. K. to Kt's 2d.22. B. takes Q. Kt. P.
23. P. takes B.23. R. takes P. (ch.)
24. Q. takes R.24. Q. takes Q. (ch.)
25. K. to B's 2d.25. P. to K's 6th.
26. B. takes P.26. B. to K. B's 4th. (ch.)
27. R. to Q's 3d.27. Q. to Q. B's 5th. (ch.)
28. K. to Q's 2d.28. Q. to Q. R's 7th. (ch.)
29. K. to Q's square.29. Q. to Kt's 8th. (ch.)
And White resigns.

Game V.—(By Philidor.)

WHITE. BLACK.
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to K. B's 3d. 2. P. to Q's 3d.
3. P. to Q's 4th. 3. P. to K. B's 4th.
4. P. takes K. P. 4. K. B. P. takes K. P.
5. Kt. to Kt's 5th. 5. P. to Q's 4th.
6. P. to K. B's 4th.[A] 6. K. B. to Q. B's 4th.
7. P. to Q. B's 4th. 7. P. to Q. B's 3d.
8. Q. Kt. to B's 3d. 8. K. Kt. to K's 2d.
9. P. to K. R's 4th. 9. P. to K. R's 3d.
10. K. Kt. to R's 3d.10. Castles.
11. Q. Kt. to Q. R's 4th.11. B. to Q. Kt's 5th. (ch.)
12. B. to Q's 2d.12. B. takes B. (ch.)
13. Q. takes B.13. P. to Q's 5th.
14. P. to Q. B's 5th.14. P. to Q. Kt's 4th.
15. P. takes P. (in passing).15. Q. R. P. takes P.
16. P. to Q. Kt's 3d.16. Q. B. to K's 3d.
17. B. to K's 2d.17. Kt. to K. B's 4th.
18. K. Kt. to his sq.18. K. Kt. to Kt's 6th.
19. K. R. to his 2d.19. P. to K's 6th.
20. Q. to her Kt's 2d.20. P. to Q's 6th.
21. B. to K. B's 3d.21. K. R. takes P.
22. Castles on Q's side.22. K. R. takes Kt.
23. P. takes K. R.23. Q. R. takes P.
24. P. to Q. R's 3d.24. R. to Q. B's 5th. (ch.)
25. K. to Q. Kt's sq.25. R. to Q. B's 7th.
26. Q. to Kt's 4th.26. Q. Kt. to R's 3d.
27. Q. to K. B's 4th.27. Q. Kt. to B's 4th.
28. Q. takes K. Kt.
And Black mates in two moves.

[A] This is not the proper move; he should play 6. P. to K's 6th.

GAME THE FIFTH.
Petroff's Defence.

WHITE. BLACK.
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to B's 3d. 2. K. Kt. to B's 3d.
3. P. to Q's 4th. 3. P. takes P.
4. P. to K's 5th. 4. Kt. to K's 5th. (best)
5. Kt. takes P. 5. P. to Q's 3d. (best).
6. P. takes P. 6. K. B. takes P.
7. K. B. to Q. B's 4th. 7. K. B. to Q. B's 4th.
8. Q. B. to K's 3d. 8. Castles.
9. Castles. 9. Q. Kt. to Q's 2d.
The game is equal.

Variation I.
Commencing at Black's 3d move.

WHITE. BLACK.
1. P. to K's 4th.1. P. to K's 4th.
2. K. Kt. to B's 3d.2. K. Kt. to B's 3d.
3. P. to Q's 4th.3. Kt. takes P.
4. K. B. to Q's 3d.4. P. to Q's 4th.
5. Kt. takes K's P.5. Kt. to Q's 3d.
6. P. to Q. B's 4th.6. P. takes P.
7. K. Kt. takes P.7. Q. B. to K's 3d.
8. Kt. to K's 3d.8. B. to K's 2d.
9. Castles.9. Castles.
You have the move, and somewhat the advantage of position.

Variation II.
Beginning at White's 5th move.

WHITE. BLACK.
1. P. to K's 4th.1. P. to K's 4th.
2. K. Kt. to B's 3d.2. K. Kt. to B's 3d.
3. P. to Q's 4th.3. P. takes P.
4. P. to K's 5th.4. Kt. to K's 5th.
5. K. B. to Q's 3d.5. K. Kt. to Q. B's 4th
6. Kt. takes P.6. P. to Q's 3d.
7. P. takes P.7. K. B. takes P.
8. Castles.8. Castles.

It would not be a good move for Black, instead of castling, to take your K. R. P. (ch.) and then to take the Kt., on account of your check with the B., which would leave his Q. exposed to capture.

Variation III.
Beginning at White's 3d move.

WHITE. BLACK.
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to B's 3d. 2. K. Kt. to B's 3d.
3. Kt. takes K's P. 3. Kt. takes P.
4. Q. to K's 2d. 4. Q. to K's 2d.
5. Q. takes Kt. 5. P. to Q's 3d.
6. P. to Q's 4th. 6. P. to K. B's 3d.
7. P. to K. B's 4th. 7. Q. Kt. to Q's 2d.
8. Q. Kt. to B's 3d. 8. Q. P. takes Kt.
9. Q. Kt. to Q's 5th. 9. Q. to her 3d.
10. Q. P. takes P.10. P. takes P.
11. P. takes P.11. Q. to her B's 3d.
12. K. B. to Q. Kt's 5th.12. Q. to her B's 4th.
13. P. to Q. Kt's 4th.

Winning the Q. At his 12th move, Black might prolong the game by playing 12. Q. to K. Kt's 3d, but in that case you would take 13. Q. B. P. with the Kt. (ch.), then take Q. with Q., and afterwards Q. R. with Kt.

Variation IV.
Beginning at Black's 3d move.

WHITE. BLACK.
1. P. to K's 4th.1. P. to K's 4th
2. K. Kt. to B's 3d.2. K. Kt. to B's 3d.
3. Kt. takes K. P.3. P. to Q's 3d.
4. Kt. to K. B's 3d.4. Kt. takes K's P.
5. P. to Q's 4th.5. P. to Q's 4th.
6. K. B. to Q's 3d.6. K. B. to K's 2d.
7. Castles.7. Q. Kt. to B's 3d.
8. P. to Q. B's 4th.8. Q. B. to K's 3d.
9. P. to Q. R's 3d.9. Castles.

You are now enabled to play Q. to her B's 2d, and obtain a good attacking situation.

ANOTHER VARIATION,
Beginning at the 3d move of White.

WHITE. BLACK.
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to B's 3d. 2. K. Kt. to B's 3d.
3. K. B. to Q. B's 4th. 3. Kt. takes P.
4. Q. to K's 2d. 4. P. to Q's 4th.
5. Kt. takes K. P. 5. K. B. to Q. B. 4 (best)
6. P. to Q's 3d. 6. B. takes K. B. P. (ch.)
7. K. to Q's sq. (best) 7. B. to Q. Kt's 3d.
8. Kt. takes K. B. P. 8. Q. B. to K. Kt's 5th.
9. Kt. takes Q. 9. B. takes Q. (ch.)
10. K. takes B.10. Kt. to K. B's 7th.
11. R. to K. B's sq.11. P. takes B.
12. Kt. to K's 6th.12. P. takes P. (ch.)
13. P. takes P.13. K. to his 2d.
14. Kt. takes K. Kt. P.14. R. to K. Kt's sq.
15. Kt. to K. B's 5th. (ch.)15. K. to his 3d.
16. Q. B. to K's 3d.16. B. takes B.
17. Kt. takes B.17. Kt. to K. Kt's 5th.

The positions are equal, but you have a pawn more.

Variation (A.)
Beginning at Black's 6th move.

WHITE. BLACK.
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to B's 3d. 2. K. Kt. to B's 3d.
3. K. B. to Q. B's 4th. 3. Kt. takes P.
4. Q. to K's 2d. 4. P. to Q's 4th.
5. Kt. takes K. P. 5. K. B. to Q. B's 4 (best)
6. P. to Q's 3d. 6. Q. P. takes B.
7. Q. takes Kt. 7. Castles.
8. Q. takes doubled P. 8. Q. to K's 2d.
9. P. to K. B's 4th. 9. Q. Kt. to B's 3d.
10. Q. to K's 4th.10. K. R. to K's sq.
11. K. to Q's sq.11. Q. to K. R's 5th.
12. P. to K. Kt's 3d.12. Q. to K. R's 4th. (ch.)
13. K. to Q's 2d.13. Kt. takes Kt.
14. P. takes Kt.14. R. takes P.
Winning easily.

Instead, however, of playing 12. P. to K. Kt's 3d, you might at that moment move Q. Kt. to Q's 2d.

12. Q. Kt. to Q's 2d.12. Q. to K. R's 4th. (ch.)
13. Q. Kt. to K. B's 3d. (best)13. Q. B. to K. Kt's 5th.

and now, play as you can, Black must gain a decided advantage by taking the K. Kt. with Kt., &c.

VARIATION,
Beginning at White's 11th move.

WHITE. BLACK.
1. P. to K's 4th. 1. P. to K's 4th.
2. K. Kt. to B's 3d. 2. K. Kt. to B's 3d.
3. K. B. to Q. B's 4th. 3. Kt. takes P.
4. Q. to K's 2d. 4. P. to Q's 4th.
5. Kt. takes K. P. 5. K. B. to Q. B. 4th. (best)
6. P. to Q's 3d. 6. Q. P. takes B.
7. Q. takes Kt. 7. Castles.
8. Q. takes doubled P. 8. Q. to K's 2d.
9. P. to K. B's 4th. 9. Q. Kt. to B's 3d.
10. Q. to K's 4th.10. K. R. to K's sq.
11. Q. Kt. to Q's 2d.11. Q. to K. R's 5th. (ch.)
12. P. to K. Kt's 3d.12. Q. to K. R's 4th.
13. Q. Kt. to K. B's 3d.13. Q. B. to K. B's 4th.
14. Q. to K's 2d. (best)14. Q. B. to K. Kt's 5th.
15. K. R. to B's sq.15. Q. Kt. to Q's 5th.
And Black must win.