MESON Chess Problem Database

Problem Display
PID: 68324 (4b3/Kp1k1N1Q/B1RpR3/2pp4/5p2/2B2n1q/1p6/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

1st Prize, The Macedonian Problemist, 2001

4b3/Kp1k1N1Q/B1RpR3/2pp4/5p2/2B2n1q/1p6/8

#2

7 + 10

56 The Problemist 2006
56 The Problemist 2010

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc6
      • 2.Sd8#
    • 1...Kxe6
      • 2.Sd8#
  • Tries
    • 1.Se5+?
      • 1...Kd8
        • 2.Qc7#
        • 2.Qe7#
      • 1...Kxe6!
    • 1.Bf6?
      • threat
        • 2.Rexd6#
      • 1...Kxc6
        • 2.Sd8#
      • 1...Kxe6
        • 2.Rxd6#
      • 1...Qxe6
        • 2.Se5#
      • 1...bxc6
        • 2.Re7#
      • 1...Bxf7!
    • 1.Rc7+?
      • 1...Kxe6
        • 2.Sd8#
        • 2.Qg6#
        • 2.Qxh3#
      • 1...Kxc7!
    • 1.Re7+?
      • 1...Kxc6
        • 2.Sd8#
      • 1...Kxe7!
  • Keys
    • 1.Kb8!
      • threat
        • 2.Rcxd6#
      • 1...Kxc6
        • 2.Rxd6#
      • 1...Kxe6
        • 2.Sd8#
      • 1...Qxe6
        • 2.Rc7#
      • 1...bxc6
        • 2.Bc8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(i);P_SPINP(g),S_FLIGHT,XR(C)::S(F)
    • K(i);P_SPINP(g),S_FLIGHT,XR(D)::S(F)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(i);P_SPINP(g),S_FLIGHT,XR(D)
    • Try
      • B(A);
      • Threat
        • R1(D),XP(g)
      • Vars
        • K(i);P_SPINP(g),S_FLIGHT,XR(C)::S(F)
        • K(i);P_SPINP(g),S_FLIGHT,XR(D)::R1(C),XP(g)
        • Q(c);SBLOCK,XR(D)::QAR(G)+S(F),DCHECK
        • P(h);SBLOCK,XR(C)::R1(D)
      • Refutation
        • B(j);P_SPINB(j),XS(F)
    • Try
      • R(C);CHECK
      • Refutation
        • K(i);P-FLIGHT,XR(C)
    • Try
      • R(D);CHECK
      • Vars
        • K(i);S_FLIGHT,XR(C)::S(F)
      • Refutation
        • K(i);P-FLIGHT,XR(D)
  • Actual
    • K(E);S_FLIGHT
    • Threat
      • R1(C),XP(g)
    • Vars
      • K(i);P_SPINP(g),S_FLIGHT,XR(C)::R1(D),XP(g)
      • K(i);P_SPINP(g),S_FLIGHT,XR(D)::S(F)
      • Q(c);SBLOCK,XR(D)::R1(C)
      • P(h);OGATE,SBLOCK,XR(C)::B(B)
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Developed and maintained by Brian Stephenson.
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