MESON Chess Problem Database

Problem Display
PID: 67553 (3b1Q2/3P3b/Kp4p1/3Rp1p1/1Pk1B3/2pNrn2/2P5/6B1 w - - 0 1)

Dyachuk, Vasyl Vasilovich

3rd Prize, Schweizerische Schachzeitung, 1996-1997

3b1Q2/3P3b/Kp4p1/3Rp1p1/1Pk1B3/2pNrn2/2P5/6B1

#2

9 + 10

5418 FIDE Album (1995-1997) (Annexe) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Bf6
      • 2.Qc8#
    • 1...Se1
      • 2.Sxe5#
    • 1...Sxg1
      • 2.Sxe5#
    • 1...Sd2
      • 2.Sxe5#
    • 1...Sh2
      • 2.Sxe5#
    • 1...Sd4
      • 2.Sxe5#
    • 1...Sh4
      • 2.Sxe5#
    • 1...b5
      • 2.Qc5#
  • Tries
    • 1.Rd4+?
      • 1...Sxd4
        • 2.Sxe5#
      • 1...exd4
        • 2.Qf7#
      • 1...Kxd4!
    • 1.Rc5+?
      • 1...bxc5
        • 2.Qxc5#
      • 1...Kd4!
    • 1.Qd6?
      • threat
        • 2.Qc6#
      • 1...Rxd3
        • 2.Bxd3#
      • 1...Sd4
        • 2.Sxe5#
      • 1...Be7!
    • 1.Qf7?
      • threat
        • 2.Rd6#
      • 1...Rxd3
        • 2.Rd4#
      • 1...Sd4
        • 2.Rc5#
      • 1...Bg8!
  • Keys
    • 1.Rd6!
      • threat
        • 2.Qf7#
      • 1...Rxd3
        • 2.Rc6#
      • 1...Bg8
        • 2.Qxg8#
      • 1...Sd4
        • 2.Bd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • B(j);OGATE::QAR(I)
    • S(c);N_GUARD::S(C),XP(e)
    • S(c);N_GUARD,XB(A)::S(C),XP(e)
    • P(g);N_GUARD::QAR1(I)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • S(c);SBLOCK,XR(F)::S(C),XP(e)
        • P(e);SBLOCK,XR(F)::QAB(I)
      • Refutation
        • K(d);P-FLIGHT,P_SPINR(b),XR(F)
    • Try
      • R(F);CHECK
      • Vars
        • P(g);OGATE,XR(F)::QAR1(I),XP(g)
      • Refutation
        • K(d);P-FLIGHT,P_SPINR(b)
    • Try
      • Q(I);
      • Threat
        • QAR2(I)
      • Vars
        • R(b);OGATE,XS(C)::B(E),XR(b)
        • S(c);N_GUARD::S(C),XP(e)
      • Refutation
        • B(j);
    • Try
      • Q(I);
      • Threat
        • QAB(I)+R(F)
      • Vars
        • R(b);XS(C)::QAB(I)+R(F),DCHECK
        • S(c);SBLOCK::QAB(I)+R(F),DCHECK
      • Refutation
        • B(i);
  • Actual
    • R(F);
    • Threat
      • QAB(I)
    • Vars
      • R(b);XS(C)::R(F)
      • B(i);N_GUARD::QAB(I),XB(i)
      • S(c);SBLOCK::B(E)
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