Author: Enrique Irazoqui
Date: 04:06:28 09/05/00
Go up one level in this thread
You are right. 33.Rg4 mates in one less move, so it is a mate in 12 position. This is what I have: [Event "corr"] [Site "?"] [Date "1879.??.??"] [Round "?"] [White "Chigorin, Mikhail"] [Black "Yakubovich"] [Result "1-0"] [Annotator "Enrique Irazoqui"] [SetUp "1"] [FEN "5qrk/p1p1b1rp/4P2Q/1p6/5P2/8/P4P1P/B5RK w - b6 0 31"] [PlyCount "11"] [EventDate "1879.??.??"] 31. f3 $1 c5 (31... a6 32. f5 Bc5 33. Rg3 Be3 34. Qxe3 Qxf5 35. Rg1 h5 36. Qh6+ Qh7 37. Rg6 b4 38. Bxg7+ Rxg7 39. e7 Rxg6 40. e8=Q+ Rg8 41. Qf6+ Qg7 42. Qxh5#) (31... Bd6 32. f5 c5 (32... Bc5 33. Rg3 Be3 34. Qxe3 Qxf5 35. Rg1 h5 36. Qh6+ Qh7 37. Rg6 c5 38. Bxg7+ Rxg7 39. e7 Rxg6 40. e8=Q+ Rg8 41. Qf6+ Qg7 42. Qxh5#) (32... Ba3 33. Rg4 Bc1 34. Qg6 h6 35. Rh4 Qxf5 36. Qxf5 Rd8 37. Qg6 Rd1+ 38. Kg2 Rd2+ 39. Kh3 Rg2 (39... Rxh2+ 40. Kxh2 Bf4+ 41. Rxf4 b4 42. Rf8#) 40. Qxg2 Bb2 41. Bxb2 Kg8 42. Qxg7#) 33. Rg4 Bf4 34. Qxf4 Qd8 35. Rg1 c4 36. Bd4 Qb6 37. Rxg7 Rxg7 38. Bxg7+ Kg8 39. Bh6 Qd8 40. Qg3+ Qg5 41. Qxg5+ Kh8 42. Qg7#) 32. f5 b4 (32... Bd6 33. Rg4 Bf4 34. Qxf4 Qd8 35. Rg1 Qa8 36. Rxg7 Rxg7 37. Qg3 Qf8 38. e7 Kg8 39. exf8=Q+ Kxf8 40. Qxg7+ Ke8 41. Bf6 b4 42. Qe7#) 33. Rg3 c4 34. Qxh7+ $1 Kxh7 35. Rh3+ Bh4 36. Rxh4# 1-0 xg7 Rxg7 37. Qg3 Qf8 38. e7 Kg8 39. exf8=Q+ Kxf8 40. Qxg7+ Ke8 41. Bf6 b4 42. Qe7#) 33. Rg3 c4 34. Qxh7+ $1 Kxh7 35. Rh3+ Bh4 36. Rxh4# 1-0 Enrique
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