MESON Chess Problem Database

Problem Display
PID: 60796 (B3QB2/Pn1K4/R1NN4/2kP2p1/1p1p2R1/1p6/8/8 w - - 0 1)

Dyachuk, Vasyl Vasilovich

1st Prize, Neue Zurcher Zeitung, 1998

B3QB2/Pn1K4/R1NN4/2kP2p1/1p1p2R1/1p6/8/8

#2

10 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Rxg5#
      • 2.Qe5#
  • Tries
    • 1.Sxd4?
      • 1...Kxd5
        • 2.Ra5#
      • 1...Sxd6
        • 2.Qc8#
      • 1...Sa5
        • 2.Se6#
      • 1...Sd8
        • 2.Sxb3#
      • 1...b2!
    • 1.Ra5+?
      • 1...Kb6
        • 2.Sc4#
        • 2.Sc8#
      • 1...Sxa5!
    • 1.Qe4?
      • threat
        • 2.Qxd4#
      • 1...d3
        • 2.Qc4#
        • 2.Qd4#
      • 1...Sxd6!
    • 1.Qe5?
      • threat
        • 2.Qxd4#
      • 1...d3
        • 2.Rc4#
        • 2.Qd4#
      • 1...Sxd6!
  • Keys
    • 1.Qc8!
      • threat
        • 2.Se7#
      • 1...Kxd5
        • 2.Rxg5#
      • 1...Sxd6
        • 2.Sxd4#
      • 1...Sa5
        • 2.Sxa5#
      • 1...Sd8
        • 2.Sxd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);XP(c)
      • Vars
        • K(d);P-FLIGHT,P_SPINS(f),XP(B)::R(C)
        • S(f);P_SPINS(f),XS(E)::QAR(I)
        • S(f);::S(D)
        • S(f);::S(D),XP(a)
      • Refutation
        • P(a);
    • Try
      • R(C);CHECK
      • Refutation
        • S(f);XR(C)
    • Try
      • Q(I);
      • Threat
        • QAB1(I),XP(c)
      • Refutation
        • S(f);P_SPINS(f),XS(E)
    • Try
      • Q(I);
      • Threat
        • QAB1(I),XP(c)
      • Refutation
        • S(f);P_SPINS(f),XS(E)
  • Actual
    • Q(I);
    • Threat
      • QAR(I)+S(D)
    • Vars
      • K(d);OGATEB,P-FLIGHT,XP(B)::R(A),XP(e)
      • S(f);P_SPINS(f),XS(E)::QAR(I)+S(D),XP(c)
      • S(f);::QAR(I)+S(D),XS(f)
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