Bad B vs K; 26... W next objective is BxN Burn vs Alekhine, 1911  (C13) French, 82 moves, 1-0 20...B. with a trace of monochromy: Harmless but not negligible Alekhine vs Yates, 1926  (C01) French, Exchange, 56 moves, 1-0 56. W missed a win: Bishop superior: Promoting agent: passers Euwe vs Botvinnik, 1936  (E34) Nimzo-Indian, Classical, Noa Variation, 56 moves, 1/2-1/2 38: Good B superior: Majorities--good ram--assailable straggler Euwe vs Pirc, 1949  (E23) Nimzo-Indian, Spielmann, 46 moves, 1-0 20:Promotion of the B: Rather backwardness than monochromy Lasker vs Janowski, 1909  (C68) Ruy Lopez, Exchange, 37 moves, 1-0 35...Extra pawn plus extra chance: Black has a great advantage Reshevsky vs Tartakower, 1937 (E47) Nimzo-Indian, 4.e3 O-O 5.Bd3, 51 moves, 1/2-1/2 Extra pawn and active Bishop: Black should win [] Alekhine vs Spielmann, 1923  (D37) Queen's Gambit Declined, 62 moves, 0-1 20.Centralized Knight and lever: Sponsors of annihilation Euwe vs Flohr, 1932  (C11) French, 28 moves, 1-0 20:Operation shielding: Measures and counter-measures Rubinstein vs F Duz-Khotimirsky, 1911 (D15) Queen's Gambit Declined Slav, 57 moves, 1/2-1/2 Knights stronger than Bishops Unzicker vs Saemisch, 1949  (C79) Ruy Lopez, Steinitz Defense Deferred, 23 moves, 1-0 Chain sweeping: Eruptive activation of the Bishop Alekhine vs H Johner, 1934  (C79) Ruy Lopez, Steinitz Defense Deferred, 47 moves, 1-0 Franco formations Alekhine vs Euwe, 1936  (C02) French, Advance, 81 moves, 1-0 The fork trick re d4, e4 vs d6, e7 Alekhine vs A Cartier, 1923  (A84) Dutch, 64 moves, 0-1 24: Sweeper-sealer twist: Promising Alekhine vs Capablanca, 1927  (D67) Queen's Gambit Declined, Orthodox Defense, Bd3 line, 86 moves, 1/2-1/2 The sealer Alekhine vs Flohr, 1931  (D26) Queen's Gambit Accepted, 29 moves, 1-0 The Benoni Minor c2, d5, e4 vs. c5, d6, e5 Alekhine vs M Castillo, 1939 (A44) Old Benoni Defense, 67 moves, 1-0 37. Self-sealing: Monstrous L Asztalos vs Kostic, 1931 (B00) Uncommon King's Pawn Opening, 42 moves, 1/2-1/2 17 games