MESON Chess Problem Database

Problem Display
PID: 91870 (1R2n3/8/8/8/2k1B3/4K3/8/6nQ w - - 0 1)

Fabel, Karl

Shakhmaty v SSSR, 1937

1R2n3/8/8/8/2k1B3/4K3/8/6nQ

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Qc1#
    • 1...Sh3
      • 2.Qc1#
  • Tries
    • 1.Bd3+?
      • 1...Kc3
        • 2.Qc6#
      • 1...Kc5!
    • 1.Qxg1?
      • threat
        • 2.Qc1#
      • 1...Kc3
        • 2.Qc1#
      • 1...Kc5!
  • Keys
    • 1.Ba8!
      • threat
        • 2.Qc6#
      • 1...Kc3
        • 2.Qc6#
      • 1...Kc5
        • 2.Qd5#
        • 2.Qc6#
      • 1...Sf3
        • 2.Qc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(a);OGATE::QAR(A)
  • Tries
    • Try
      • B(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR(A)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);XS(a)
      • Threat
        • QAR(A)
      • Vars
        • K(b);P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • B(C);
    • Threat
      • QAR2(A)
    • Vars
      • K(b);P-FLIGHT::QAR(A)
      • S(a);OGATE::QAR(A)
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