Maia, Marco Aurelio Ferreira (2130) - Ramos, Angelo Bil (2093)IV IRT do Clube de Xadrez Guanabara 2014 (CXG - Rua: Av. Churchill 109, sala 101 - Centro - Rio de Janeiro), 11.10.2014
D90: GrÃ1/4nfeld: 4 Nf3 Bg7 sidelines 1.d4 Cf6 2.c4 g6 3.Cc3 d5 4.cxd5 Cxd5 5.Ad2 Cb6 6.e3 Ag7 7.Cf3 O-O 8.Tc1 Cc6 9.Ab5 Ad7 10.O-O a6 11.Ae2 Ae6 12.b3 h6 13.Ce4 Cd7 14.Cc5 Cxc5+= 15.Txc5 Dd6 16.Dc1 Tfd8 17.Td1 [ 17.Ad3 Ad7+= ]] 17...Ad5= 18.Ae1 Tac8 [ 18...e6 19.Cd2= ] 19.Ce5 [ 19.Ad3 Axf3 20.gxf3 Dd7+= ]] 19...e6 [ 19...Cxe5!? 20.dxe5 Dxe5+= ]] 20.Cxc6 Axc6 [ 20...bxc6? 21.Dc2 f5 22.f3+- ] 21.f3 Ta8 22.Ag3 De7 23.Dc3 Td5 24.Txd5 [ 24.Txc6 bxc6 25.Dxc6 Tad8+= ]] 24...exd5= 25.Tc1 Af8 26.a4 Te8 27.Af2 Ad7 28.e4 c6 29.Ad3 dxe4 30.fxe4 Db4 31.Ae1 Dxc3 32.Axc3 Ae6 33.Ac2 Ag7 34.e5 Td8 35.Rf2 h5 36.h3 Secures g4 Af8 37.Td1 Ad5 The bishop is not easily driven from d5 38.Aa5 White threatens to win material: Ba5xd8 Te8 39.Ab6 Rg7 40.Tc1 Aa3 41.Te1 Ab4 Black threatens to win material: Bb4xe1 42.Te2 Rh6 [ 42...Ae7 43.Aa5=+ ] 43.h4 Ae7 44.g3 Consolidates h4 Ab4 45.Ac5 Ac3 [ 45...Axc5 46.dxc5 a5 47.Te3=+ ] 46.Te3 White threatens to win material: Re3xc3 Ab2 [ 46...Ad2 47.Td3 Aa5 48.Ad1= ] 47.a5 [ 47.Ae4 Ac1 48.Te2 Axe4 ( 48...Axb3? doesn't lead to anything significant 49.Te1+- ) 49.Txe4 Rh7+= ]] 47...Rg7= 48.b4 Ac1 49.Te1 Ah6 50.Ad3 Te6 51.Af1 f5 52.Ah3 Rf7 53.Af1 Te8 54.Ab6 Re6 55.Ac5 Td8 56.Ah3 Ad2 57.Te2 Ac1 58.Tc2 Ah6 59.Re2 [ 59.Ag2 Axg2 60.Rxg2 g5= ]] 59...Ab3 [ 59...g5 60.hxg5 Axg5 61.Rf2=+ ] 60.Tc3= Ad5 61.Tc2 Ae4 62.Tc3 Te8 63.Ta3 Ad5 64.Tc3 Tg8 65.Rf2 Ae4 66.Tb3 Rd5 [ 66...g5!?=+ ]] 67.Af1= Re6 68.Ah3 [ 68.Tb1!= ] 68...g5=+ 69.hxg5 Axg5 70.Tb2 [ 70.Af1 Ad5 71.Tc3 h4=+ ]] 70...h4 [ 70...Rd5!? 71.Te2 h4-/+ ]] 71.g4=+ fxg4 72.Axg4+ Af5 73.Axf5+ Rxf5 74.Rf3 [ 74.Tb3!?=+ ] 74...Af4-/+ 75.Tg2 Ag3 [ 75...Th8 76.e6 h3-/+ ]] 76.Ae7? [ 76.Ad6=+ this is the best way to fight back ] 76...Tg4-+ 77.Axh4 [ 77.Ac5 Tf4+ 78.Re3 Tf1-+ ]] 77...Txh4 78.Txg3 Txd4 79.Tg7 Txb4 80.Te7 Tb5 81.e6 [ 81.Rf2 cannot undo what has already been done Re4-+ ]] 81...Txa5 [ 81...Rf6!? might be the shorter path 82.Th7 Rxe6 83.Re3-+ ] 82.Txb7 Rxe6 83.Re4 Td5 [ 83...Ta4+ ends the debate 84.Rd3 a5-+ ]] 84.Tb6= Rd6 85.Txa6 Td1 86.Re3 Rd5 87.Re2 White threatens to win material: Ke2xd1 Td4 88.Re3 c5 89.Ta3?? White is ruining his position [ 89.Ta1= the only rescuing move ] 89...Rc4-+ 90.Ta4+ Rc3 91.Ta3+ Rb4 92.Ta8 [ 92.Ta1 doesn't change the outcome of the game Td5-+ ]] 92...Td7 93.Tb8+ Rc3 94.Re2 c4 95.Th8 Rc2 96.Th3 Te7+ 97.Rf1 c3 98.Th8 Rc1 99.Tc8 [ 99.Rf2 cannot change what is in store for ? Tb7-+ ]] 99...c2 100.Tc6 [ 100.Rf2 doesn't get the cat off the tree Te5-+ ]] 100...Te4 101.Rf2 Rb2 [ 101...Rd2!? and Black can already relax 102.Rf3 Td4 103.Tc5-+ ] 102.Rf3 Tb4
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