MESON Chess Problem Database

Problem Display
PID: 232944 (2kb4/2p5/KP6/2Q5/8/8/8/8 w - - 0 1)

Grassano, Carlos A

Kudesnik, 2013

2kb4/2p5/KP6/2Q5/8/8/8/8

#2

3 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.Qxc7#
    • 1...Bg5
      • 2.Qxc7#
    • 1...Bf6
      • 2.Qxc7#
    • 1...Be7
      • 2.Qxc7#
  • Tries
    • 1.Ka7?
      • threat
        • 2.Qf5#
      • 1...Bh4
        • 2.Qxc7#
      • 1...Bg5
        • 2.Qxc7#
      • 1...Bf6
        • 2.Qxc7#
      • 1...Be7
        • 2.Qxc7#
      • 1...Kd7!
    • 1.Qe7?
      • 1...Kb8
        • 2.Qxd8#
      • 1...cxb6
        • 2.Qb7#
      • 1...c5
        • 2.Qb7#
      • 1...c6
        • 2.Qb7#
      • 1...Bxe7!
    • 1.b7+?
      • 1...Kb8
        • 2.Qa7#
      • 1...Kd7!
  • Keys
    • 1.Qc6!
      • 1...Kb8
        • 2.Qb7#
      • 1...Bh4
        • 2.Qxc7#
      • 1...Bg5
        • 2.Qxc7#
      • 1...Bf6
        • 2.Qxc7#
      • 1...Be7
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(c);N_GUARD::QAR1(A),XP(a)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Threat
        • QAB(A)
      • Vars
        • B(c);N_GUARD::QAR1(A),XP(a)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
    • Try
      • Q(A);N_PINP(a)
      • Vars
        • K(b);P-FLIGHT::QAR2(A),XB(c)
        • P(a);OGATE,XP(C)::QAB1(A)
        • P(a);OGATE::QAB1(A)
      • Refutation
        • B(c);XQ(A)
    • Try
      • P(C);CHECK
      • Vars
        • K(b);N_SPINP(a),P-FLIGHT::QAB1(A)
      • Refutation
        • K(b);N_SPINP(a),S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);N_SPINP(a),P-FLIGHT::QAR1(A)
      • B(c);N_GUARD::QAR1(A),XP(a)
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