Ok, here's a game that I won. I was playing vs someone on chess.com, and playing as black. My PGN is as follows (with comments from the analysis engine):
[fen ""]
1. d4 e5 2. Nf3 {MISTAKE (-0.26) The best move was 2. dxe5}
(2. dxe5)
2... Nc6 {MISTAKE (+1.33) The best move was 2... e4}
(2... e4 3. Nfd2 Nf6 4. c4 c6 5. e3 d5 6. Be2 Be6 7. Nc3)
3. Nc3
3... Bb4 {INACCURACY (+0.98) A better move was 3... exd4}
(3... exd4 4. Nxd4 Nf6 5. g3 Bb4 6. Bg2 O-O 7. O-O d5 8. Nxc6)
4. dxe5 Nxe5 {MISTAKE (+3.60) The best move was 4... d5}
(4... d5)
5. Nxe5 Bd6 6. Nd3 Nf6 7. e3 b6 8. Qf3 Rb8 9. Qe4+ {BLUNDER (-4.53) From winning to losing. The best move was 9. Nb5}
(9. Nb5)
9... Nxe4 10. Nxe4 Qe7 11. Nxd6+ cxd6 12. f3 Qh4+ 13. Nf2 Qb4+ 14. c3 Qc5 15. Nd3 Qd5 16. e4 Qc4 {INACCURACY (-1.22) A better move was 16... Qe6}
(16... Qe6 17. Nf4)
17. Nf2 {INACCURACY (-2.60) A better move was 17. Nb4}
(17. Nb4 Qe6 18. Bf4 f5 19. Nd5 Qg6 20. exf5 Qxf5 21. O-O-O Bb7)
17... Qc6 {INACCURACY (-1.56) A better move was 17... Qe6}
(17... Qe6)
18. Nd3 {INACCURACY (-2.60) A better move was 18. Bf4}
(18. Bf4 b5 19. Rd1 Rb6 20. Bxd6 Qb7 21. Rd5 b4 22. Bd3 bxc3)
18... O-O 19. Nf4 {INACCURACY (-3.83) A better move was 19. Nb4}
(19. Nb4)
19... Re8 20. Bc4 {MISTAKE (-7.39) The best move was 20. Kf2}
(20. Kf2 f5)
20... d5 {BLUNDER (-2.20) The best move was 20... Qxc4}
(20... Qxc4)
21. Bxd5 Qc5 22. Bb3 d5 {MISTAKE (-0.87) The best move was 22... Bb7}
(22... Bb7 23. Nd3)
23. Bxd5 {MISTAKE (-3.69) The best move was 23. Nxd5}
(23. Nxd5 Be6 24. Be3 Qc6 25. O-O f5 26. Rad1 fxe4 27. fxe4 Rb7)
23... Bb7 24. Bd2 {INACCURACY (-6.92) A better move was 24. Bxb7}
(24. Bxb7)
24... Bxd5 25. Nxd5 Rbd8 {BLUNDER (-1.94) The best move was 25... Qxd5}
(25... Qxd5 26. Rd1 Qxa2 27. Bf4 Rbc8 28. Bc1 f5 29. O-O fxe4 30. f4)
26. O-O-O Rxd5 {INACCURACY (-1.14) A better move was 26... Qc4}
(26... Qc4 27. a3 f5 28. Ne3 Qa2 29. Nxf5 Rxd2 30. Kxd2 Qxb2+ 31. Ke3)
27. exd5 Qxd5 28. Be3 {INACCURACY (-2.55) A better move was 28. Rhe1}
(28. Rhe1)
28... Qxa2 29. Bf2 {MISTAKE (-6.58) The best move was 29. Rhe1}
(29. Rhe1 f6)
29... Re2 {BLUNDER (♔ MATE IN 2) From winning to losing. The best move was 29... Qa1+}
(29... Qa1+ 30. Kc2 Re2+ 31. Kd3 Qxb2 32. Bg3 Rxg2 33. Rhe1 Qc2+ 34. Kd4)
30. Rhe1 {BLUNDER (♚ MATE IN 1) From winning to losing. The best move was 30. Rd8+}
(30. Rd8+ Re8 31. Rxe8#)
30... Qa1#
And here are the "stats" from the game:
Strength White Black
Excellent 18 15
Good 1 5
Inaccuracy (?!) 5 4
Mistake (?) 4 3
Blunder (??) 2 3
Forced 0 0
Best Move 32.1% 26.7%
Avg. Diff 1.39 1.21
The analysis engine tells me what the mistake was, and what the best move was, but not really "why". I'm more interested in the mistakes and blunders at this point.
I'm really just trying to learn right now...any thoughts or advice are really appreciated.