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		<title>Problem 509: Francesco Simoni - Helpmate</title>
		<description>Discuss Problem 509: Francesco Simoni - Helpmate</description>
		<link>https://www.kobulchess.com/en/problems/originals-2015/733-francesco-simoni-helpmate.html</link>
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			<title>eugene david rosner says:</title>
			<link>https://www.kobulchess.com/en/problems/originals-2015/733-francesco-simoni-helpmate.html#comment-6252</link>
			<description><![CDATA[an incredibly daring and ambitious idea that is extremely well-executed! Kjell's analysis is spot on.]]></description>
			<dc:creator>eugene david rosner</dc:creator>
			<pubDate>Thu, 05 Feb 2015 04:47:22 +0000</pubDate>
			<guid>https://www.kobulchess.com/en/problems/originals-2015/733-francesco-simoni-helpmate.html#comment-6252</guid>
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			<title>Francesco Simoni says:</title>
			<link>https://www.kobulchess.com/en/problems/originals-2015/733-francesco-simoni-helpmate.html#comment-6207</link>
			<description><![CDATA[ Thanks! To clarify, I think the dual avoidance effect in a) cames out as soon as the wS moves 1. Sc1 and so it closes the line.]]></description>
			<dc:creator>Francesco Simoni</dc:creator>
			<pubDate>Tue, 27 Jan 2015 16:48:44 +0000</pubDate>
			<guid>https://www.kobulchess.com/en/problems/originals-2015/733-francesco-simoni-helpmate.html#comment-6207</guid>
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			<title>Francesco Simoni says:</title>
			<link>https://www.kobulchess.com/en/problems/originals-2015/733-francesco-simoni-helpmate.html#comment-6206</link>
			<description><![CDATA[ As you have pointed out, there isn't probably a better way. A larger chessboard would be useful, but... Another choice is to put the wQ in h6, but in this case I must prevent a terrific queen mate in the thematic square f4. To avoid this, a twin form by moving the wQ is also possible (a wR would be enought in this case), but I don't like this choice, because the W dual avoidance would be lost.]]></description>
			<dc:creator>Francesco Simoni</dc:creator>
			<pubDate>Tue, 27 Jan 2015 16:44:44 +0000</pubDate>
			<guid>https://www.kobulchess.com/en/problems/originals-2015/733-francesco-simoni-helpmate.html#comment-6206</guid>
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			<title>Seetharaman Kalyan says:</title>
			<link>https://www.kobulchess.com/en/problems/originals-2015/733-francesco-simoni-helpmate.html#comment-6204</link>
			<description><![CDATA[ Good point. The effect of opening a black line for dual avoidance effect is not there in the other solution. But as you rightly mentioned it is still a very good problem!]]></description>
			<dc:creator>Seetharaman Kalyan</dc:creator>
			<pubDate>Tue, 27 Jan 2015 06:08:49 +0000</pubDate>
			<guid>https://www.kobulchess.com/en/problems/originals-2015/733-francesco-simoni-helpmate.html#comment-6204</guid>
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			<title>Kjell Widlert says:</title>
			<link>https://www.kobulchess.com/en/problems/originals-2015/733-francesco-simoni-helpmate.html#comment-6202</link>
			<description><![CDATA[The analogy between the solutions is almost, but not quite, perfect. Part b) shows the idea clearly: the unpins Sb1--e2 and Rd6--e2 both guard one S-mate by line-opening and one by direct guard; White can compensate one of these by an anticipatory pin (=check!); and he must pin with the piece whose guarding duty is taken over by the wS in the mate. So one solution is 1.Re6 Rxb2+! etc. The other should have been 1.Sc3 Qxb2+(!?) etc ... but Sc3 happens to close the line h8-b2! If there had been a square d0, everything would have been perfect. To work around this limitation in the matrix, the composer had to show the S--e2 line in a twin with Sa2 - which has the drawback that e1 is guarded already in the diagram (in contrast to f4, which becomes guarded only by Black's play). Bad luck, but I don't think there was a better option - and the problem is quite impressive anyway.]]></description>
			<dc:creator>Kjell Widlert</dc:creator>
			<pubDate>Mon, 26 Jan 2015 22:05:21 +0000</pubDate>
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