Author: Bruce Moreland
Date: 17:31:37 01/22/98
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On January 22, 1998 at 18:51:06, Amir Ban wrote: >No. 237 (Bf2+): > >Junior's recommendation for black here is to resign. Bf2+ seems like a >particularly bad move. Anyone can say what the point is here ? > >Recommend: Throw it out. Fen is 3rr1k1/1b5p/p6p/1p3N2/6Pb/P1Q1p3/1PP4P/R5K1 b - - 0 1 One of us must have the wrong FEN, because this is +5 at ply 2 or so. Mine would prefer to play Rd1+ and throw away a rook first, which seems to win faster, but Bf2+, with the idea of throwing away a rook on the next move (which can be declined), seems to work too. >No. 271 (Nxc6): > >Qd8 is the right move here (score = 1235). White threatens mate in 2 and >picks up a queen and a few other pieces. > >Recommend: Change key to Qd8. Qd8 is mate in 10, apparently. I can't find a mate if Nxc6. >No. 277 (Rh8+): > >I find Qg6 for a +1 score. Rh8+ may well win but I don't see how. > >Recommend: Investigation necessary. 1. Rh8+ Kxh8 2. Qh5+ Kg8 3. Qe8+ and stuff starts to fall of the board. I don't know how long it would take mine to find this, I forced the first two plies. >No. 287 (Qb5+): > >Looking at the position, the assignment "white wins" seems impossible. I >only see that Qb5+ draws, and so does Rc8+. > >Recommend: Investigation necessary. In position 237, I have an underpromotion in my PV, same here, so if you have the right FEN for 237, this might be the problem. I get Qb5+ +2.12, but maybe it'd drop if I let it run longer (ran about a minute). >No. 291 (Rxb2): > >This one may be correct, but I can't find a win. > >Recommend: Investigation necessary. I am running out of time, so I couldn't let mine search this from the root. I don't know how long it would take mine to find it, but the win would be with: 1. ... Rb2 2. Kxb2 Ba3+ 3. Kxa3 Rb8 and watch white thrash. bruce
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