MESON Chess Problem Database

Problem Display
PID: 132867 (8/8/Bk1P2Q1/1P6/8/1K6/5R2/8 w - - 0 1)

Andreev, Aleksandr Grigorevich

200 Shakhmatni Zadachi, 1983

8/8/Bk1P2Q1/1P6/8/1K6/5R2/8

#2

6 + 1

SOLUTION

  • SOUND
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qc7#
      • 1...Ka5
        • 2.Qc7#
      • 1...Ka7!
    • 1.Qf7?
      • threat
        • 2.Qc7#
      • 1...Ka5
        • 2.Qc7#
      • 1...Kc5!
    • 1.Qh7?
      • threat
        • 2.Qc7#
      • 1...Ka5
        • 2.Qc7#
      • 1...Kc5!
    • 1.Qg5?
      • 1...Ka5
        • 2.Qd8#
      • 1...Ka7!
    • 1.Qg7?
      • threat
        • 2.Qc7#
      • 1...Ka5
        • 2.Qc7#
      • 1...Kc5!
  • Keys
    • 1.Qg1!
      • threat
        • 2.Ra2#
      • 1...Ka5
        • 2.Ra2#
      • 1...Kc5
        • 2.Rd2#
      • 1...Ka7
        • 2.Rf8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • K(a);S_FLIGHT::QAB(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • K(a);S_FLIGHT::QAB(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • K(a);S_FLIGHT::QAB(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • K(a);S_FLIGHT::QAB(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • K(a);S_FLIGHT::QAB(F)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(F);
    • Threat
      • QAB(F)+R(A)
    • Vars
      • K(a);S_FLIGHT::R(A)
      • K(a);S_FLIGHT::QAB(F)+R(A)
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