Author: Robert Hyatt
Date: 14:32:11 10/11/01
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On October 11, 2001 at 15:37:56, Uri Blass wrote: >On October 11, 2001 at 14:26:55, Robert Hyatt wrote: > >>On October 11, 2001 at 04:58:11, Dan Andersson wrote: >> >>>>This is an easy and obvious one. The second you play Kh6, I start directly >>>>attacking your rook with mine. >>>That idea wont work in general. As your opponent will mate on the back row. The >>>key is the third row attack coupled with stalemate. For example: >>>[D]1r5k/7P/6BK/6R1/8/8/8/8 b - - >>>1... Rb5 following the idea >>>2. Bf5 Rb6+ only move! >>>3. Kh5 >>> >>>MvH Dan Andersson >> >> >>I play Rb8. What now? I can't check your king, I can't attack >>your rook, I go back to the 8th and wait for you to try again... >> >>I believe you have too many tasks to handle here. You must prevent >>me from checking your king, from attacking your rook, you must defend g8 with >>your rook _and_ bishop, and you must prevent me from taking on h7. Three >>pieces don't (to me) seem up to the task when one of the pieces is the king. >> >>Did I miss something??? > >After 1...Rb5 2.Bf5 Rb8 3.Be6 white wins the game > >2...Rb6+ is needed in that line and not Rb8 but the simplest draw from the >diagram is 1...Rb1 for example 2.Rf5 Rf1 and black has a perpetual rook threat >when white cannot capture because of stalemate and must escape because KBP vs K >is a draw. > >Uri That wasn't the sequence of moves we talked about. Rb5 attacking the rook. Bf5 interposing and blocking the attack on the rook, then Rb6+ driving the king back to h5 and after Kh5, Rb8 again to see what white tries next. The king can't be allowed to h6 without either checking the king or attacking the rook to try to force a stalemate. IE Dan had already given the Rb6+ Kh5 move. My Rb8 was the next move I would play to see what white will try next.
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