MESON Chess Problem Database

Problem Display
PID: 160377 (8/Q7/2P5/pp6/k7/8/1K6/8 w - - 0 1)

Abdullayev, Suleyman

ChessStar, 2011

8/Q7/2P5/pp6/k7/8/1K6/8

#2

3 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Kb4
      • 2.Qd4#
  • Tries
    • 1.Ka2?
      • 1...Kb4
        • 2.Qd4#
      • 1...b4!
    • 1.Kc3?
      • 1...Ka3
        • 2.Qxa5#
      • 1...b4+!
    • 1.Qg1?
      • 1...Kb4
        • 2.Qd4#
      • 1...b4!
    • 1.Qf2?
      • 1...Kb4
        • 2.Qd4#
      • 1...b4!
    • 1.Qe3?
      • threat
        • 2.Qa3#
        • 2.Qb3#
      • 1...Kb4
        • 2.Qd4#
      • 1...b4!
    • 1.Qb6?
      • 1...Kb4
        • 2.Qd4#
      • 1...b4!
    • 1.Qg7?
      • 1...Kb4
        • 2.Qd4#
      • 1...b4!
    • 1.c7?
      • 1...Kb4
        • 2.Qd4#
      • 1...b4!
  • Keys
    • 1.Qd7!
      • 1...Kb4
        • 2.Qd4#
      • 1...b4
        • 2.c7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);N_SPINP(b),P-FLIGHT::QAR2(C)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR2(C)
      • Refutation
        • P(c);
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR2(C),XP(b)
      • Refutation
        • P(c);CHECK
    • Try
      • Q(C);N_PINP(b)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);N_PINP(b)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);N_PINP(b)
      • Threat
        • DUALS(2)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);N_PINP(b)
      • Vars
        • K(a);P-FLIGHT,P_SPINP(c)::QAR2(C)
      • Refutation
        • P(c);
    • Try
      • Q(C);N_PINP(b)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • P(c);
    • Try
      • P(B);
      • Vars
        • K(a);N_SPINP(b),P-FLIGHT::QAR2(C)
      • Refutation
        • P(c);
  • Actual
    • Q(C);N_PINP(b)
    • Vars
      • K(a);P-FLIGHT::QAR2(C)
      • P(c);SBLOCK::QAB(C)+P(B)
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