MESON Chess Problem Database

Problem Display
PID: 264230 (8/2K3p1/3Pkpb1/2p2R2/4pp2/5N2/8/Q7 w - - 0 1)

Chodera, Miroslav

Prace, 1951

8/2K3p1/3Pkpb1/2p2R2/4pp2/5N2/8/Q7

#2

5 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Tries
    • 1.Sg5+?
      • 1...fxg5
        • 2.Qe5#
      • 1...Kxf5!
    • 1.Rxc5?
      • threat
        • 2.Qa2#
      • 1...f5
        • 2.Sg5#
      • 1...Kf7!
  • Keys
    • 1.Qa8!
      • threat
        • 2.Qd5#
      • 1...Kxf5
        • 2.Qc8#
      • 1...Kf7
        • 2.Sg5#
      • 1...Bxf5
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Vars
        • P(e);XS(B)::QAR1(A)
      • Refutation
        • K(d);S_FLIGHT,XR(C)
    • Try
      • R(C);XP(c)
      • Threat
        • QAB(A)
      • Vars
        • P(e);N_GUARD::S(B)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • K(d);N_GUARD,S_FLIGHT,XR(C)::QAB(A)
      • K(d);N_GUARD,P_SPINP(e),S_FLIGHT::S(B)
      • B(f);N_GUARD,SBLOCK,XR(C)::QAB(A)
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