MESON Chess Problem Database

Problem Display
PID: 40775 (2R2K2/2p1p2B/1p2NQ2/1p2pn2/2k2r2/BN3p1b/PP6/2nR2bq w - - 0 1)

Makihovi, Ilmari

1st Prize, Tidskrift for Schack, 1946

2R2K2/2p1p2B/1p2NQ2/1p2pn2/2k2r2/BN3p1b/PP6/2nR2bq

#2

10 + 13

3105 FIDE Album (1945-1955) 1964

SOLUTION

  • SOUND
  • Sets
    • 1...Bh2
      • 2.Rxc7#
    • 1...Se3
      • 2.Rxc7#
    • 1...e4
      • 2.Qc3#
  • Tries
    • 1.Sxf4?
      • threat
        • 2.Rxc1#
        • 2.Qe6#
      • 1...Sxa2
        • 2.Qe6#
      • 1...Sxb3
        • 2.Qe6#
      • 1...exf4
        • 2.Qc3#
        • 2.Qe6#
      • 1...exf6
        • 2.Bg8#
        • 2.Rxc1#
      • 1...Qg2
        • 2.Qe6#
      • 1...Qh2
        • 2.Qe6#
      • 1...Bf2
        • 2.Qe6#
      • 1...Bh2
        • 2.Rxc7#
        • 2.Qc6#
        • 2.Qe6#
      • 1...Be3
        • 2.Qe6#
      • 1...Bd4
        • 2.Sd2#
        • 2.Qe6#
      • 1...Bc5
        • 2.Qe6#
      • 1...Se2
        • 2.Qe6#
      • 1...Sd3
        • 2.Qe6#
      • 1...Se3
        • 2.Rxc7#
        • 2.Qc6#
      • 1...Sg3
        • 2.Rxc1#
      • 1...Sd4
        • 2.Sd2#
      • 1...Sh4
        • 2.Rxc1#
      • 1...Sd6
        • 2.Rxc1#
      • 1...Sh6
        • 2.Rxc1#
      • 1...Sg7
        • 2.Rxc1#
      • 1...f2
        • 2.Rxc1#
      • 1...e6
        • 2.Rxc1#
        • 2.Qxe6#
      • 1...b4!
  • Keys
    • 1.Sxc7!
      • threat
        • 2.Qe6#
      • 1...exf6
        • 2.Bg8#
      • 1...Rd4
        • 2.Qc6#
      • 1...Se3
        • 2.Se6#
      • 1...Sg3
        • 2.Rxc1#
      • 1...Sd4
        • 2.Sd2#
      • 1...Sh4
        • 2.Rxc1#
      • 1...Sd6
        • 2.Rxc1#
      • 1...Sh6
        • 2.Rxc1#
      • 1...Sg7
        • 2.Rxc1#
      • 1...f2
        • 2.Sd5#
      • 1...e6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 10
    • REMOVED MATES = 2
  • Sets
    • B(b);N_GUARD::R(I),XP(l)
    • S(j);P_PINQ(G),S_CUTB(b)::R(I),XP(l)
    • P(i);OGATE::QAR1(G)
  • Tries
    • Try
      • S(F);XR(g)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XP(B)::QAB(G)
        • S(a);XS(E)::QAB(G)
        • Q(c);::QAB(G)
        • B(b);::QAB(G)
        • B(b);N_SPINP(l)::QAB(G)
        • S(a);::QAB(G)
        • S(j);::R(A),XS(a)
        • S(j);SBLOCK::S(E)
        • P(d);::R(A),XS(a)
      • Refutation
        • P(h);
  • Actual
    • S(F);XP(l)
    • Threat
      • QAB(G)
    • Vars
      • P(m);N_GUARD,XQ(G)::B(H)
      • R(g);S_CUTB(b)::QAR2(G)
      • S(j);P_PINQ(G),S_CUTB(b)::R(I)+S(F)
      • S(j);P_PINQ(G)::R(A),XS(a)
      • S(j);P_PINQ(G),SBLOCK::S(E)
      • P(d);S_CUTB(b)::R(I)+S(F)
      • P(m);::QAB(G),XP(m)
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Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).