MESON Chess Problem Database

Problem Display
PID: 275762 (6B1/Q1P2p2/8/B7/K7/8/PP6/kbRN4 w - - 0 1)

Pypa, Volodimir Iosifovich

Buletin Problemistic, 1999

6B1/Q1P2p2/8/B7/K7/8/PP6/kbRN4

#2

9 + 3

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Tries
    • 1.Rxb1+?
      • 1...Kxa2
        • 2.Sc3#
      • 1...Kxb1!
    • 1.Qd4?
      • 1...f5
        • 2.b4#
      • 1...f6
        • 2.b4#
      • 1...Kxa2!
    • 1.b4?
      • 1...f5
        • 2.Qd4#
      • 1...f6
        • 2.Qd4#
      • 1...Kxa2!
  • Keys
    • 1.Bc3!
      • 1...Kxa2
        • 2.Kb4#
      • 1...f5
        • 2.b4#
      • 1...f6
        • 2.b4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK,XB(b)
      • Vars
        • K(a);P-FLIGHT,P_SPINP(c),XP(C)::S(B)
      • Refutation
        • K(a);P-FLIGHT,XR(A)
    • Try
      • Q(G);
      • Vars
        • P(c);::QAB(G)+P(D)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,P_SPINP(c),XP(C)
    • Try
      • P(D);
      • Vars
        • P(c);::QAB(G)
      • Refutation
        • K(a);N_SPINB(b),P-FLIGHT,P_SPINP(c),XP(C)
  • Actual
    • B(F);
    • Vars
      • K(a);N_SPINB(b),P-FLIGHT,P_SPINP(c),XP(C)::QAR(G)+K(E)
      • P(c);::B(F)+P(D)
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