MESON Chess Problem Database

Problem Display
PID: 232931 (1K6/8/2kp4/1p2R3/1P6/8/8/1Q6 w - - 0 1)

Grassano, Carlos A

Kudesnik, 2005

1K6/8/2kp4/1p2R3/1P6/8/8/1Q6

#2

4 + 3

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Re6?
      • 1...Kd5
        • 2.Qe4#
      • 1...Kb6
        • 2.Rxd6#
      • 1...Kd7!
    • 1.Re7?
      • 1...Kd5
        • 2.Qe4#
      • 1...d5
        • 2.Qg6#
      • 1...Kb6!
    • 1.Qc2+?
      • 1...Kd7
        • 2.Qc7#
        • 2.Qc8#
      • 1...Kb6!
    • 1.Qf5?
      • 1...dxe5
        • 2.Qe6#
      • 1...d5
        • 2.Qe6#
      • 1...Kb6!
    • 1.Qh7?
      • threat
        • 2.Qb7#
        • 2.Qc7#
      • 1...Kb6
        • 2.Qb7#
      • 1...d5
        • 2.Re6#
        • 2.Qc7#
      • 1...dxe5!
    • 1.Qc1+?
      • 1...Kd7
        • 2.Qc7#
        • 2.Qc8#
      • 1...Kb6!
  • Keys
    • 1.Qg6!
      • 1...Kb6
        • 2.Qxd6#
      • 1...Kd7
        • 2.Qe8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);P_PINP(c)
      • Vars
        • K(b);N_SPINP(c),S_FLIGHT::QAB1(A)
        • K(b);P-FLIGHT::R(C),XP(c)
      • Refutation
        • K(b);N_SPINP(c),S_FLIGHT
    • Try
      • R(C);
      • Vars
        • K(b);S_FLIGHT::QAB1(A)
        • P(c);OGATEB,SBLOCK::QAR(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • P(c);OGATEB,XR(C)::QAR2(A)
        • P(c);OGATEB::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
      • Refutation
        • P(c);XR(C)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(A);P_PINP(c)
    • Vars
      • K(b);P-FLIGHT::QAR2(A),XP(c)
      • K(b);N_SPINP(c),S_FLIGHT::QAB1(A)
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