Originally posted by CrawlIce
I did hear a story about some smartass who underpromoted his p to a B "to show his opponent how to mate with two bishops" and only thereafter realized he now had two same-colored bishops. Draw!
Perhaps fear of stalemeate led D. Rehfeld to promote four pawns as bishops:
[Event "Sao Paulo Hebraica op"]
[Site "Sao Paulo"]
[Date "1999.??.??"]
[Round "1"]
[White "Rehfeld, Daniel"]
[Black "Mordoch, William"]
[Result "1-0"]
[ECO "C42"]
[PlyCount "95"]
[EventDate "1999.??.??"]
[Source "ChessBase"]
[SourceDate "1999.11.16"]
1. e4 e5 2. Nf3 Nf6 3. Nxe5 Nxe4 4. Qe2 Bd6 5. Qxe4 Bxe5 6. Qxe5+ Qe7 7. Qxe7+
Kxe7 8. Nc3 Nc6 9. Bc4 d5 10. Nxd5+ Kd7 11. d3 Kd8 12. Bf4 Be6 13. O-O-O Bxd5
14. Bxd5 Kd7 15. Rhe1 Rhe8 16. Kd2 Rad8 17. Rxe8 Rxe8 18. Re1 Rxe1 19. Kxe1 g6
20. Bxf7 g5 21. Bxg5 Ne5 22. Bh5 c6 23. f4 Nf7 24. Bxf7 h6 25. Bxh6 b5 26. g4
b4 27. g5 Ke7 28. g6 c5 29. Bg5+ Kd7 30. g7 a5 31. g8=B a4 32. h4 a3 33. bxa3
bxa3 34. h5 Kc6 35. h6 Kb5 36. h7 c4 37. Bxc4+ Kb4 38. h8=B Ka4 39. f5 Kb4 40.
f6 Kc3 41. f7+ Kxc2 42. f8=B Kb1 43. d4 Ka1 44. d5+ Kb1 45. d6 Kc2 46. d7 Kb1
47. d8=B Kc2 48. Bh7# 1-0