MESON Chess Problem Database

Problem Display
PID: 57389 (8/4K2B/3p3Q/1p1pR3/3kn2R/1P1N1b2/8/4B3 w - - 0 1)

Vinagre, Jose C

The Problemist, 2005

8/4K2B/3p3Q/1p1pR3/3kn2R/1P1N1b2/8/4B3

#2

8 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd3
      • 2.Qd2#
  • Tries
    • 1.Bc3+?
      • 1...Kxd3
        • 2.Qd2#
      • 1...Kxc3!
    • 1.Qg5?
      • threat
        • 2.Rxd5#
      • 1...Kxd3
        • 2.Qd2#
      • 1...dxe5!
  • Keys
    • 1.Sb4!
      • threat
        • 2.Rxd5#
      • 1...Kc5
        • 2.Qe3#
      • 1...Kxe5
        • 2.Sc6#
      • 1...dxe5
        • 2.Qb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(b);OGATEB,P-FLIGHT,XS(C)::QAR1(F)
  • Tries
    • Try
      • B(A);CHECK
      • Vars
        • K(b);P-FLIGHT,XS(C)::QAR1(F)
      • Refutation
        • K(b);N_SPINS(c),S_FLIGHT,XB(A)
    • Try
      • Q(F);
      • Threat
        • R1(E),XP(e)
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(C)::QAR1(F)
      • Refutation
        • P(f);XR(E)
  • Actual
    • S(C);
    • Threat
      • R1(E),XP(e)
    • Vars
      • K(b);N_SPINS(c),P_SPINP(e),S_FLIGHT::QAB(F)
      • K(b);N_SPINS(c),S_FLIGHT,XR(E)::S(C)
      • P(f);OGATE,SBLOCK,XR(E)::QAB(F)
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