MESON Chess Problem Database

Problem Display
PID: 45973 (8/5p2/5pq1/2pk1p1R/B1RN4/K1pbQ3/7B/8 w - - 0 1)

Murarasu, Ion

Vatarescu, Paul

The Problemist, 2002

8/5p2/5pq1/2pk1p1R/B1RN4/K1pbQ3/7B/8

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Bb3#
    • 1...Bxc4
      • 2.Bc6#
  • Tries
    • 1.Se6?
      • threat
        • 2.Rxc5#
      • 1...Kxc4
        • 2.Qxc5#
      • 1...Bxc4
        • 2.Sc7#
      • 1...Be4
        • 2.Qxe4#
      • 1...Qg3!
    • 1.Qe5+?
      • 1...Kxc4
        • 2.Bb3#
        • 2.Bb5#
      • 1...fxe5!
  • Keys
    • 1.Sxf5!
      • threat
        • 2.Rxc5#
      • 1...Kxc4
        • 2.Sd6#
      • 1...Bxc4
        • 2.Se7#
      • 1...Be4
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINP(e),OGATEB,S_FLIGHT,XR(E)::B(D)
    • B(b);SBLOCK,XR(E)::B(D)
  • Tries
    • Try
      • S(F);
      • Threat
        • R1(E),XP(c)
      • Vars
        • K(d);N_SPINP(e),S_FLIGHT,XR(E)::QAR1(C),XP(c)
        • B(b);SBLOCK,XR(E)::S(F)
        • B(b);N_GUARD::QAB1(C),XB(b)
      • Refutation
        • Q(g);
    • Try
      • Q(C);CHECK,N_PINP(e)
      • Refutation
        • P(f);XQ(C)
  • Actual
    • S(F);XP(e)
    • Threat
      • R1(E),XP(c)
    • Vars
      • K(d);S_FLIGHT,XR(E)::S(F)
      • B(b);SBLOCK,XR(E)::R(G)+S(F),DCHECK
      • B(b);N_GUARD::QAB1(C),XB(b)
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