MESON Chess Problem Database

Problem Display
PID: 37817 (B5N1/2Bp4/3Pp1Q1/R1n1P2P/2RNPk2/6p1/3Pp1p1/4rbK1 w - - 0 1)

Dyachuk, Vasyl Vasilovich

4th HM., Melnichenko JT, 1990

B5N1/2Bp4/3Pp1Q1/R1n1P2P/2RNPk2/6p1/3Pp1p1/4rbK1

#2

13 + 9

4827 FIDE Album (1989-1991) 1997
133 The Problemist Supplement 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe5
      • 2.Qxg3#
      • 2.Qg5#
      • 2.Qf6#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Qxg3#
      • 1...Kf3
        • 2.Qxg3#
      • 1...Kxe5
        • 2.Qxg3#
      • 1...exf5
        • 2.Qxf5#
      • 1...Sxe4!
    • 1.Sxe6+?
      • 1...Kf3
        • 2.Qf5#
      • 1...Kxe5
        • 2.Rcxc5#
        • 2.Raxc5#
        • 2.Qf5#
        • 2.Qf6#
        • 2.d4#
      • 1...Sxe6
        • 2.Qf5#
      • 1...dxe6!
    • 1.Bd8?
      • threat
        • 2.Qg5#
      • 1...Kxe5
        • 2.Qxg3#
      • 1...Sxe4
        • 2.Qxe4#
      • 1...Sb7!
    • 1.Rc3?
      • threat
        • 2.Qxg3#
      • 1...Kxe5
        • 2.Qf6#
      • 1...Sxe4
        • 2.Rf3#
      • 1...Sb7
        • 2.Rf3#
      • 1...Sd3!
    • 1.Qg4+?
      • 1...Kxe5
        • 2.Sf3#
        • 2.Raxc5#
        • 2.Qxg3#
        • 2.Qg5#
      • 1...Kxg4!
    • 1.Qh6+?
      • 1...Kxe5
        • 2.Sf3#
        • 2.Raxc5#
        • 2.Qg5#
        • 2.Qf6#
      • 1...Kg4!
  • Keys
    • 1.Sh6!
      • threat
        • 2.Qf6#
      • 1...Kxe5
        • 2.Qg5#
      • 1...Sxe4
        • 2.Qg4#
      • 1...Sb7
        • 2.Qg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • QAB1(J),XP(e)
      • Vars
        • K(f);P-FLIGHT::QAR1(J),XP(e)
        • K(f);P_SPINS(g),S_FLIGHT,XP(G)::QAB(J),XP(e)
        • P(h);OGATE,XS(D)::QAR1(J),XP(h)
      • Refutation
        • S(g);P_SPINS(g),XP(E)
    • Try
      • S(D);CHECK,XP(h)
      • Vars
        • K(f);P-FLIGHT::QAR2(J)
        • S(g);XS(D)::QAR1(J)
      • Refutation
        • P(i);XS(D)
    • Try
      • B(K);
      • Threat
        • QAB1(J)
      • Vars
        • K(f);P_SPINS(g),S_FLIGHT,XP(G)::QAB(J),XP(e)
        • S(g);OGATE,XP(E)::QAR1(J),XS(g)
      • Refutation
        • S(g);
    • Try
      • R(C);
      • Threat
        • QAB1(J),XP(e)
      • Vars
        • K(f);P_SPINS(g),S_FLIGHT,XP(G)::QAB1(J)
        • S(g);XP(E)::R1(C)
        • S(g);::R1(C)
      • Refutation
        • S(g);
    • Try
      • Q(J);CHECK
      • Refutation
        • K(f);P-FLIGHT,XQ(J)
    • Try
      • Q(J);CHECK
      • Refutation
        • K(f);P-FLIGHT
  • Actual
    • S(M);
    • Threat
      • QAR2(J)
    • Vars
      • K(f);P_SPINS(g),S_FLIGHT,XP(G)::QAR2(J)
      • S(g);XP(E)::QAR1(J)
      • S(g);::QAR1(J)
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