MESON Chess Problem Database

Problem Display
PID: 153289 (2B5/Q5K1/1n1N1rn1/2NPk3/5p2/B7/b7/b2R4 w - - 0 1)

Kwiatkowski, Marek

2nd HM., Wola Gulowska, 1988

2B5/Q5K1/1n1N1rn1/2NPk3/5p2/B7/b7/b2R4

#2

8 + 7

15345 Wola Gulowska Award 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd6
      • 2.Sd7#
    • 1...Rf7+
      • 2.Sxf7#
    • 1...Sa4
      • 2.Sd7#
    • 1...Sc4
      • 2.Sd7#
    • 1...Sxd5
      • 2.Sd3#
    • 1...Sd7
      • 2.Sxd7#
    • 1...Sa8
      • 2.Sd7#
    • 1...Sxc8
      • 2.Sd7#
  • Tries
    • 1.Bb2+?
      • 1...Kxd6
        • 2.Se4#
      • 1...Bxb2!
    • 1.Qe7+?
      • 1...Re6
        • 2.Qxe6#
      • 1...Sxe7!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qxf6#
      • 1...Rxf7+
        • 2.Sxf7#
      • 1...Kxd6
        • 2.Sd3#
      • 1...Rxd6
        • 2.Qf5#
      • 1...Sxd5
        • 2.Sd7#
      • 1...Rf5
        • 2.Qe6#
      • 1...Re6
        • 2.Qxe6#
      • 1...Bd4
        • 2.Sd3#
      • 1...Sd7
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • K(d);S_FLIGHT,XS(E)::B(B)+S(C)
    • R(f);CHECK,N_GUARD::S(E),XR(f)
    • S(e);N_GUARD::S(C)
    • S(e);SBLOCK,XP(D)::S(C)
    • S(e);N_GUARD::S(C),XS(e)
    • S(e);N_GUARD,XB(H)::S(C)
  • Tries
    • Try
      • B(B);CHECK
      • Vars
        • K(d);S_FLIGHT,XS(E)::S(C)
      • Refutation
        • B(a);XB(B)
    • Try
      • Q(F);CHECK
      • Vars
        • R(f);N_GUARD,P_SPINR(f)::QAR1(F),XR(f)
      • Refutation
        • S(g);XQ(F)
  • Actual
    • Q(F);
    • Threat
      • QAB1(F),XR(f)
    • Vars
      • R(f);CHECK,XQ(F)::S(E),XR(f)
      • K(d);S_FLIGHT,XS(E)::B(B)+S(C)
      • R(f);OGATE,SBLOCK,XS(E)::QAR1(F)
      • S(e);N_GUARD,XP(D)::S(C)
      • R(f);N_GUARD::QAR1(F)
      • R(f);N_GUARD::QAR1(F),XR(f)
      • B(a);SBLOCK::S(C)
      • S(e);N_GUARD::S(C),XS(e)
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