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| Black has just played 30...Bb7-e4 and offered a draw in Spanton (1814) - Maximilian Ponomarev (2017), Basel Round 4. Was I right to accept his offer? |
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The white knight is hanging, so 31.fxe4?! Qxe5 32.exf5 Qxe3+ 33.Rxe3 exf5 is nothing for White after, say, 34.Rc3 Rd5. But note Black must avoid 31...Rxe4?? 32.Qc3.
Saving the knight with 31.Nd3!? allows 31...Bxd3 32.Qxe6+ Kg7 33.Qe8! (better than immediately capturing on d3) Be4! 34.fxe4 f4! 35.Rf1 Rd8 36.Qe6 fxg3 37.Qf6+ Kg8 38.h4, a complicated line that the engines reckon is equal. Note that in this variation 33...Qd8, which the engines give at first, runs into 34.Re7+ Kh6 35.Qf7 Qh8 36.cxd3 Rxd3 37.Kf1, when the better-coordinated white pieces are enough for an advantage, according to the engines.
However, White seems to be much better after 31.c3. I am fairly sure I rejected it because of 31...Ra4?, but the engines point out that 32.Rd1 allows a winning exploitation of Black's weak king (33.Rd7 cannot be prevented without large material loss). The engines reckon the best reply to 31.c3 is 31...Rd5, but then 32.Nxg6 hxg6 33.fxe4 leaves White much better, eg 33...Re5 34.Qh6 Qg7 35.Qxg7+ Kxg7 36.Kf2 fxe4 37.Ke3.
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