MESON Chess Problem Database

Problem Display
PID: 230767 (5Bn1/1K6/p7/Rn1k4/6B1/3p4/3N4/Q7 w - - 0 1)

Strzala, Kazimierz

The Problemist, 1988

5Bn1/1K6/p7/Rn1k4/6B1/3p4/3N4/Q7

#2

6 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3?
      • threat
        • 2.Qd4#
      • 1...Kc4
        • 2.Be6#
      • 1...Ke4!
    • 1.Bg7?
      • threat
        • 2.Qd4#
        • 2.Qe5#
      • 1...Kc5
        • 2.Qd4#
      • 1...Kd6
        • 2.Qe5#
      • 1...Sf6!
    • 1.Qa3?
      • threat
        • 2.Qc5#
        • 2.Qd6#
      • 1...Kd4
        • 2.Qc5#
      • 1...Ke5
        • 2.Qd6#
      • 1...Se7!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qd4#
      • 1...Kc4
        • 2.Be6#
      • 1...Ke4
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Threat
        • QAR1(A)
      • Vars
        • K(c);N_SPINS(b),S_FLIGHT::B(C)
      • Refutation
        • K(c);N_SPINS(b),S_FLIGHT
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAB1(A)
        • K(c);N_SPINS(b),P-FLIGHT::QAB1(A)
      • Refutation
        • S(e);
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);N_SPINS(b),P-FLIGHT::QAB1(A)
        • K(c);P-FLIGHT::QAB1(A)
      • Refutation
        • S(e);
  • Actual
    • S(B);
    • Threat
      • QAR1(A)
    • Vars
      • K(c);N_SPINS(b),S_FLIGHT::B(C)
      • K(c);N_SPINS(b),S_FLIGHT::QAR1(A)
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