MESON Chess Problem Database

Problem Display
PID: 15298 (Q7/8/2p2B2/K1b5/8/8/1R6/k7 w - - 0 1)

Podushkin, S

64 Shakhmatnoe obozrenie, 1982

Q7/8/2p2B2/K1b5/8/8/1R6/k7

#2

4 + 3

3296 Shakhmatny zadachi miniaturi 1987

SOLUTION

  • SOUND
  • Sets
    • 1...Bb4+
      • 2.Kxb4#
    • 1...Bb6+
      • 2.Kxb6#
  • Tries
    • 1.Rb3+?
      • 1...Bd4
        • 2.Kb4#
      • 1...Ka2!
    • 1.Qa6?
      • threat
        • 2.Qf1#
      • 1...Bb4+
        • 2.Kxb4#
      • 1...Bb6+
        • 2.Kxb6#
      • 1...Bf2
        • 2.Kb4#
      • 1...Be3
        • 2.Kb4#
      • 1...Bd4!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qa2#
      • 1...Bb4+
        • 2.Rxb4#
      • 1...Bb6+
        • 2.Rxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • B(b);CHECK::QAR(D)+K(B),XB(b)
  • Tries
    • Try
      • R(A);CHECK
      • Vars
        • B(b);P_SPINB(b)::QAR(D)+K(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(D);
      • Threat
        • QAR(D)
      • Vars
        • B(b);CHECK::QAR(D)+K(B),XB(b)
        • B(b);::QAR(D)+K(B)
      • Refutation
        • B(b);
  • Actual
    • Q(D);
    • Threat
      • QAR1(D)
    • Vars
      • B(b);CHECK,N_GUARD::B(C)+R(A),XB(b)
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