MESON Chess Problem Database

Problem Display
PID: 110133 (8/8/8/8/8/Q3p3/pB2K3/1k6 w - - 0 1)

Saks, Oleg Pavlovich

Kudesnik, 1991

8/8/8/8/8/Q3p3/pB2K3/1k6

#2

3 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Kd1?
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1S
        • 2.Qxa1#
      • 1...a1B
        • 2.Qxa1#
      • 1...a1R
        • 2.Qxa1#
      • 1...e2+!
    • 1.Kd3?
      • 1...a1Q
        • 2.Qxa1#
      • 1...a1S
        • 2.Qxa1#
      • 1...a1B
        • 2.Qxa1#
      • 1...a1R
        • 2.Qxa1#
      • 1...e2!
  • Keys
    • 1.Ba1!
      • threat
        • 2.Qb2#
      • 1...Kxa1
        • 2.Qc1#
      • 1...Kc2
        • 2.Qb2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • P(b);OGATE::QAR1(C),XQ(b)
        • P(b);OGATE::QAR1(C),XS(b)
        • P(b);OGATE::QAR1(C),XB(b)
        • P(b);OGATE::QAR1(C),XR(b)
      • Refutation
        • P(c);CHECK
    • Try
      • K(B);S_FLIGHT
      • Vars
        • P(b);OGATE::QAR1(C),XQ(b)
        • P(b);OGATE::QAR1(C),XS(b)
        • P(b);OGATE::QAR1(C),XB(b)
        • P(b);OGATE::QAR1(C),XR(b)
      • Refutation
        • P(c);
  • Actual
    • B(A);
    • Threat
      • QAR1(C)
    • Vars
      • K(a);P-FLIGHT,P_SPINP(b),XB(A)::QAR2(C)
      • K(a);S_FLIGHT::QAR1(C)
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