MESON Chess Problem Database

Problem Display
PID: 166995 (5QK1/B3b3/2n5/2N1P3/3kBP2/1P3p2/1PrP1P2/2R5 w - - 0 1)

Colaneri, Bruno

3rd Comm., Musante-100 MT, 2017

5QK1/B3b3/2n5/2N1P3/3kBP2/1P3p2/1PrP1P2/2R5

#2

12 + 5

4901 Best Problems 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb2
      • 2.Rc4#
    • 1...Rxd2
      • 2.Rc4#
    • 1...Rc3
      • 2.bxc3#
      • 2.dxc3#
    • 1...Rc4
      • 2.Rxc4#
    • 1...Rxc5
      • 2.Rc4#
    • 1...Bh4
      • 2.Qd6#
    • 1...Bg5
      • 2.Qd6#
    • 1...Bd6
      • 2.Qxd6#
    • 1...Bf6
      • 2.Qd6#
    • 1...Bd8
      • 2.Qd6#
  • Tries
    • 1.Re1?
      • threat
        • 2.Se6#
      • 1...Bxc5
        • 2.Qd6#
      • 1...Rxc5!
    • 1.Qf5?
      • threat
        • 2.Se6#
      • 1...Rxc5
        • 2.Rc4#
      • 1...Bxc5!
  • Keys
    • 1.d3!
      • threat
        • 2.Se6#
      • 1...Rxc5
        • 2.Rc4#
      • 1...Bxc5
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(a);OGATE,XP(B)::R1(A)
    • R(a);OGATE,XP(C)::R1(A)
    • R(a);OGATE::R1(A),XR(a)
    • R(a);OGATE,P_SPINR(a),XS(H)::R1(A)
    • B(e);OGATE::QAR2(K)
    • B(e);OGATE::QAR2(K),XB(e)
  • Tries
    • Try
      • R(A);
      • Threat
        • B(J)+S(H),DCHECK
      • Vars
        • B(e);OGATE,P_SPINB(e),XS(H)::QAR2(K)
      • Refutation
        • R(a);P_SPINR(a),XS(H)
    • Try
      • Q(K);
      • Threat
        • B(J)+S(H),DCHECK
      • Vars
        • R(a);OGATE,P_SPINR(a),XS(H)::R1(A)
      • Refutation
        • B(e);P_SPINB(e),XS(H)
  • Actual
    • P(C);
    • Threat
      • B(J)+S(H),DCHECK
    • Vars
      • R(a);OGATE,P_SPINR(a),XS(H)::R1(A)
      • B(e);OGATE,P_SPINB(e),XS(H)::QAR2(K)
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