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1...Rb8 2Rxb8 1/2-1/2
1. ... Rb8! 2. Ra2+ (2. Rxb8 stalemate) Kb5 3. Rb2+ Ka4! and draw.
Don't see any way for White to win after:1. ... Rb8 2. Nb6+ If 2. Rxb8 StalemateIf 2. Ra2+ Kb5 3. Rb2+ Ka4 4. Rxb8 StalemateContinuing: 2. .. Ka5 3. Kc4 Rg8 (3. .. Rxb6?? 4. Ra2#) 4. Rb5+ Ka6 5. Rb3 Ka5
Rb8..Rxb8 stalemate..Ra2+ Kb5 Rb2+ Ka4 repeat..Ra2+ Kb5 Nd6+ Kc5 =..Nb6+ Ka5 (Ka3 loses, mating net) Nc4+ Ka4 repeat
My instant reaction 1..... Rb8 If white accepts rook it is stalemate.Alternate moves need probe.Of course 2.Ra2+ Kb5.Black need not worry about losing the rook by 3.Rb2+ as he can move K back to a4.
Rb8 should draw this, though I don't have time to be 100% sure. The key lines are1. .....Rb82. Ra2 Kb53. Rb2 Ka4 and the rook can't be taken at either move 2 or move 4 due to the stalemate. In addition, white can't win if he allows the black king to escape by playing a move like 3.Nd6.Finally,1. .....Rb82. Nb6 Ka53. Nc4 Ka4 with the same stalemate theme.
...Rb8 seems to be the only moveto prevent mateRxb8 1/2-1/2Ra2+ Kb5 does not help:if this is followed by Rb2+black simply goes back to a4Rc2 or anything else, are too complicated for me to analyze!
Rb8..Am i right?
1._Rb8! 2.Ra2 Kb5 3.Rb2 Ka4! 4.Rb8 draw by stealmate
1._Rb8! 2.Ra2(Rb8 stealmate) Kb5 3.Rb2 Ka4! 4.Rb8 draw by stealmate.
Incomplete analysis:1. … ♜b82. ♖xb8 stalemate.2. ♖a2+ ♚b53. ♖b2+ ♚c44. ♖xb8 stalemate.
White threatens mate with 2. Rb4 and black is forced to proceedwith:1...Rb8! 2. Ra2+ ( 2. Rxb8 stalemate 1/2-1/2) Kb5 ( 3. Rb2+ Ka4 repeats moves = )4. Ra5+ Kc6 ( 4. Nd6+ Kc6 ) +/- and black escapes the mating net.Marcelo
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