MESON Chess Problem Database

Problem Display
PID: 226491 (1r2N3/n2B1K1p/3p1P1r/1nPkp3/2p2pR1/1P2Qb2/2P2N2/2R5 w - - 0 1)

Anonymous

Sunday Chronicle, 1945

(First published on Sun Jun 24 1945)

1r2N3/n2B1K1p/3p1P1r/1nPkp3/2p2pR1/1P2Qb2/2P2N2/2R5

#2

11 + 11

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf6+
      • 2.Sxf6#
    • 1...Sa3
      • 2.Sc7#
    • 1...Sc3
      • 2.Sc7#
    • 1...Sc7
      • 2.Sxc7#
    • 1...Sc6
      • 2.Be6#
    • 1...cxb3
      • 2.c4#
    • 1...e4
      • 2.Rg5#
  • Keys
    • 1.Sd3!
      • threat
        • 2.Sb4#
      • 1...Rxf6+
        • 2.Sxf6#
      • 1...cxb3
        • 2.c4#
      • 1...cxd3
        • 2.c4#
      • 1...fxe3
        • 2.bxc4#
      • 1...dxc5
        • 2.Qxe5#
      • 1...Sa3
        • 2.Sc7#
      • 1...Sc3
        • 2.Sc7#
      • 1...Sd4
        • 2.Sc7#
      • 1...Sc7
        • 2.Sxc7#
      • 1...Sc6
        • 2.Be6#
      • 1...e4
        • 2.Rg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(h);CHECK,XP(H)::S(K),XR(h)
    • S(d);N_GUARD::S(K)
    • S(d);N_GUARD::S(K),XS(d)
    • S(i);SBLOCK::B(I)
    • P(b);OGATE,XP(D)::P(B)
    • P(f);OGATEB::R(F)
  • Actual
    • S(C);
    • Threat
      • S(C)
    • Vars
      • R(h);CHECK,XP(H)::S(K),XR(h)
      • P(b);OGATE,XP(D)::P(B)
      • P(b);OGATE,XS(C)::P(B)
      • P(c);XQ(E)::P(D),XP(b)
      • P(g);N_GUARD,XP(G)::QAR1(E),XP(f)
      • S(d);N_GUARD::S(K)
      • S(d);N_GUARD::S(K),XS(d)
      • S(i);SBLOCK::B(I)
      • P(f);OGATEB::R(F)
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