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Member since Feb-04-12 · Last seen Apr-06-15
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>> Click here to see tcostin's game collections.

   tcostin has kibitzed 9 times to chessgames  
   Nov-04-13 K Plater vs Sliwa, 1963 (replies)
tcostin: @Sneaky: it seems you are correct, the pin on the f column is lethal for the bishop. The threat is not just the fork but also Be5, winning the pinned bishop. After 34. Rf4 Black can try Rg8 (so as to answer 35. Be4 with Rg5; Rd8 doesn't work since after Be4 the rook cannot go to ...
   Jun-17-13 H Pfleger vs Z Domnitz, 1964 (replies)
tcostin: Drat! I saw the Rxf8 line almost immediately which would give White decisive material, so I didn't look for anything better.
   Oct-05-12 Saidy vs C Brasket, 1972 (replies)
tcostin: PhonyBenoni: very nice, thwarted twice now :) I was about to post another line countering Rxd7, but Qa6 is much stronger and makes Rxd7 into a blunder as opposed to merely suboptimal.
   Oct-04-12 R Liiva vs U Haavisto, 1993 (replies)
tcostin: It seems to me White's play is not justified, but 18... Nh5 is a blunder leading to the mate. What if 18.. Qxc4? I can't find any mate for White in this line. If 19. dxc4 Kxf7, Black is ahead in material and White's threats are gone. 20. Rf1+ can be safely answered with Kg8 and ...
   Aug-09-12 Yermolinsky vs J Fang, 1994 (replies)
tcostin: Edit: in the above line, 35. Kf2 is an instant loss. 35. Ke2 g1Q+ 36. Bf2 seems like a solid fortress.
   Jul-22-12 K Rodriguez vs P Alzola Tovar, 2002 (replies)
tcostin: Black can probably postpone his demise with 31..cxb2 32. Qxc5+ Kg8 (.. Ke8 33. Qe7#) 33. Qg5+ Kf8 34. Qg7+ Ke8 35. Bxc2 but even so, White's position is winning. I wonder how this would play out if Black had moved 29.. Rfc8 instead of b8.
   Mar-08-12 Gligoric vs C W Pritchett, 1967 (replies)
tcostin: After 16...Qb6(?), black's camp suffers from a number of weaknesses. The Nf6 has to protect against Qxh7#, the Be7 is undefended, and the Qb6 is misplaced, allowing for a possible killer fork with Nd7. White can exploit all this at once with 17. Nxd5! 17 ...exd5, 18.Nxc6 wins a ...
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