MESON Chess Problem Database

Problem Display
PID: 88240 (kb6/2p5/2KP4/1P6/3Q4/8/8/8 w - - 0 1)

Bidulescu, Constantin

Buletin Problemistic, 1970

kb6/2p5/2KP4/1P6/3Q4/8/8/8

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qg7?
      • 1...Ka7
        • 2.Qa1#
      • 1...cxd6
        • 2.Qb7#
      • 1...Ba7!
    • 1.Qh8?
      • 1...Ka7
        • 2.Qa1#
      • 1...cxd6!
    • 1.Qe4?
      • 1...Ka7
        • 2.Qa4#
      • 1...Ba7
        • 2.Kxc7#
      • 1...cxd6!
  • Keys
    • 1.Qd5!
      • 1...Ka7
        • 2.Qa2#
      • 1...cxd6
        • 2.Kb6#
      • 1...Ba7
        • 2.Kxc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT,P_SPINP(a)::QAR(A)
        • P(a);OGATE,XP(D)::QAB1(A)
      • Refutation
        • B(c);
    • Try
      • Q(A);P_PINB(c)
      • Vars
        • K(b);N_SPINB(c),P-FLIGHT::QAR(A)
      • Refutation
        • P(a);XP(D)
    • Try
      • Q(A);
      • Vars
        • K(b);P-FLIGHT::QAR(A)
        • B(c);SBLOCK::QAB(A)+K(C),XP(a)
      • Refutation
        • P(a);XP(D)
  • Actual
    • Q(A);
    • Vars
      • K(b);P-FLIGHT::QAR(A)
      • P(a);XP(D)::QAB(A)+K(C)
      • B(c);SBLOCK::QAB(A)+K(C),XP(a)
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