MESON Chess Problem Database

Problem Display
PID: 95038 (3R4/1p6/1k6/1P6/K7/8/Q7/8 w - - 0 1)

Shakhnazaryan, Albert Serapionovic

Prioskaya Pravda, 1990

3R4/1p6/1k6/1P6/K7/8/Q7/8

#2

4 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qd5?
      • 1...Kc7
        • 2.Qd6#
      • 1...Ka7!
    • 1.Qf7?
      • 1...Kc5
        • 2.Qc7#
      • 1...Ka7!
    • 1.Qh2?
      • 1...Kc5
        • 2.Qc7#
      • 1...Ka7!
    • 1.Qa3?
      • 1...Kc7
        • 2.Qd6#
      • 1...Ka7!
  • Keys
    • 1.Qd2!
      • 1...Kc5
        • 2.Qd4#
      • 1...Ka7
        • 2.Qa5#
      • 1...Kc7
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAR2(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);S_FLIGHT::QAR2(A)
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