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Daily chess puzzle: Check Mate #104

September 18, 2016

Another puzzle from Dragoslav Andric’s 1981 book “Matni Udar”.


White to play and mate Black


Alexander v Marshall, Cambridge 1928



I can’t find the game in my databases, but assume White would be the young (b 1909) CHO’D Alexander, Hugh Alexander, of British chess and  Bletchley Park fame . I am assuming it might have been a student game whilst he was up at Cambridge.

Having first looked at 1 Ng6 and seen it does nothing if Black ignores the piece, the idea must be to to mate on the g file, and having first looked at the R lift Rf4-g4, seeing it can be captured, but then that recapturing g3*f4 opens the g file, the kernel of the solution had been found.

All that is needed was to see that 1 Rf4? ef 2 gf fails to 2…dc, which opens the diagonal to g1.So 1 Na4! to block the diagonal, and it all works.


1 Na4 ba[] 2 Rf4 ef (2..Kh8 3 Qf6+ and 4 Rg4 mate) 3gf Ne6 4 Rg1+


4…Ng5 and 5 Qf6 or 5 fg 1-0.



r1bn1rk1/5p1p/1qp2p1Q/ppb1pP2/3pP2N/P1NP2P1/BPP1K2P/R4R2 w – – 0 1

From → Chess

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