MESON Chess Problem Database

Problem Display
PID: 250442 (8/2b4B/6K1/p7/2P1k1pr/2B1PpP1/1RPp4/nQ1N1n2 w - - 0 1)

Harding, WT

Manchester Evening News, 1925

(First published on Sat Aug 22 1925)

8/2b4B/6K1/p7/2P1k1pr/2B1PpP1/1RPp4/nQ1N1n2

#2

10 + 9

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rh5
      • 2.Kxh5#
    • 1...Rh6+
      • 2.Kxh6#
    • 1...Sxc2
      • 2.Qxc2#
    • 1...Sb3
      • 2.cxb3#
    • 1...Sxe3
      • 2.Sf2#
  • Tries
    • 1.Ra2?
      • threat
        • 2.Qb7#
      • 1...Rh6+
        • 2.Kxh6#
      • 1...Sxc2
        • 2.Qxc2#
      • 1...Sxe3
        • 2.Sf2#
      • 1...Rh5
        • 2.Kxh5#
      • 1...Sb3
        • 2.cxb3#
      • 1...Bb6!
  • Keys
    • 1.Rb8!
      • threat
        • 2.Qb7#
      • 1...Rh6+
        • 2.Kxh6#
      • 1...Sxc2
        • 2.Qxc2#
      • 1...Sxe3
        • 2.Sf2#
      • 1...Rh5
        • 2.Kxh5#
      • 1...Bb6
        • 2.Re8#
      • 1...Sb3
        • 2.cxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(g);::B(J)+K(I),XR(g)
    • R(g);CHECK::B(J)+K(I),XR(g)
    • S(a);OGATE,P_SPINS(a),XP(D)::QAB(A),XS(a)
    • S(a);OGATE::QAB(A)+P(D),XS(a)
    • S(b);SBLOCK,XP(F)::S(B)
  • Tries
    • Try
      • R(C);
      • Threat
        • QAB(A)
      • Vars
        • R(g);CHECK::B(J)+K(I),XR(g)
        • S(a);OGATE,P_SPINS(a),XP(D)::QAB(A),XS(a)
        • S(b);SBLOCK,XP(F)::S(B)
        • R(g);::B(J)+K(I),XR(g)
        • S(a);OGATE::QAB(A)+P(D),XS(a)
      • Refutation
        • B(i);
  • Actual
    • R(C);
    • Threat
      • QAB(A)
    • Vars
      • R(g);CHECK::B(J)+K(I),XR(g)
      • S(a);OGATE,P_SPINS(a),XP(D)::QAB(A),XS(a)
      • S(b);SBLOCK,XP(F)::S(B)
      • R(g);::B(J)+K(I),XR(g)
      • B(i);N_GUARD::R(C)
      • S(a);OGATE::QAB(A)+P(D),XS(a)
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