MESON Chess Problem Database

Problem Display
PID: 231786 (K7/5p2/N3kBR1/1Q6/8/8/8/8 w - - 0 1)

Turevski, Dmitri Evgenevich

ChessStar, 2009

K7/5p2/N3kBR1/1Q6/8/8/8/8

#2

5 + 2

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Kb7?
      • 1...Kd6
        • 2.Qc6#
      • 1...fxg6!
    • 1.Sb4?
      • threat
        • 2.Qd5#
      • 1...Kd6
        • 2.Qc6#
      • 1...fxg6!
    • 1.Sb8?
      • threat
        • 2.Qd7#
        • 2.Qe5#
      • 1...Kd6
        • 2.Qc6#
        • 2.Qe5#
      • 1...fxg6!
    • 1.Bd8+?
      • 1...f6
        • 2.Rxf6#
      • 1...fxg6!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Qc6#
      • 1...Kd6
        • 2.Qd5#
      • 1...Kxf6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • P(b);XR(D)
    • Try
      • S(B);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);P-FLIGHT::QAR1(A)
      • Refutation
        • P(b);XR(D)
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Refutation
        • P(b);XR(D)
    • Try
      • B(C);CHECK
      • Vars
        • P(b);P_SPINP(b)::R1(D),XP(b)
      • Refutation
        • P(b);XR(D)
  • Actual
    • R(D);
    • Threat
      • QAR2(A)
    • Vars
      • K(a);P-FLIGHT::QAR1(A)
      • K(a);P-FLIGHT,XB(C)::QAB1(A)
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