MESON Chess Problem Database

Problem Display
PID: 42064 (B7/4p3/3B4/4NP1Q/3k2K1/1R1PN1Rn/4Pp2/1bq2r2 w - - 0 1)

Dyachuk, Vasyl Vasilovich

Gavriliv, Evgeni M

3rd Prize, Slovensky Dennik, 1994

B7/4p3/3B4/4NP1Q/3k2K1/1R1PN1Rn/4Pp2/1bq2r2

#2

11 + 7

3681 FIDE Album (1992-1994) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Qb2
      • 2.Sc6#
    • 1...Qd2
      • 2.Sc6#
    • 1...Qa3
      • 2.Sc6#
    • 1...Qd1
      • 2.Sc6#
    • 1...Qe1
      • 2.Sc6#
    • 1...Qc6
      • 2.Sxc6#
    • 1...Bc2
      • 2.Sc6#
    • 1...Bxd3
      • 2.Rxd3#
  • Tries
    • 1.Sc2+?
      • 1...Qxc2
        • 2.e3#
      • 1...Bxc2!
    • 1.Sd7?
      • threat
        • 2.Be5#
      • 1...Qxe3
        • 2.Bc5#
      • 1...exd6
        • 2.Qh8#
      • 1...Qc5
        • 2.Bxc5#
      • 1...e5
        • 2.Bxe5#
      • 1...Qc7!
    • 1.Rb4+?
      • 1...Qc4
        • 2.Rxc4#
      • 1...Kc3!
    • 1.Qh6?
      • threat
        • 2.Sf3#
      • 1...Qxe3
        • 2.Qxe3#
      • 1...exd6
        • 2.Qxd6#
      • 1...Qc6
        • 2.Sxc6#
      • 1...Sg1
        • 2.Qf4#
      • 1...Sf4
        • 2.Qxf4#
      • 1...Sg5!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Sc6#
      • 1...Qxe3
        • 2.Sf3#
      • 1...Bxd3
        • 2.Rxd3#
      • 1...exd6
        • 2.Sd7#
      • 1...Qc6
        • 2.Sxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • Q(b);N_GUARD::S(G)
    • Q(b);N_GUARD,P_PINP(A)::S(G)
    • Q(b);N_GUARD::S(G),XQ(b)
    • B(a);S_CUTQ(b)::S(G)
    • B(a);OGATE,XP(C)::R1(B),XB(a)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • Q(b);XS(D)::P(A)
      • Refutation
        • B(a);XS(D)
    • Try
      • S(G);
      • Threat
        • B(J)
      • Vars
        • Q(b);N_GUARD,XS(D)::B(J)
        • P(g);N_GUARD,XB(J)::QAB(I)
        • Q(b);N_GUARD::B(J),XQ(b)
        • P(g);::B(J),XP(g)
      • Refutation
        • Q(b);
    • Try
      • R(B);CHECK
      • Vars
        • Q(b);N_GUARD,P_SPINQ(b)::R1(B),XQ(b)
      • Refutation
        • K(f);S_FLIGHT
    • Try
      • Q(I);
      • Threat
        • S(G)
      • Vars
        • Q(b);OGATE,XS(D)::QAB1(I),XQ(b)
        • P(g);OGATE,XB(J)::QAR2(I),XP(g)
        • Q(b);N_GUARD::S(G),XQ(b)
        • S(e);N_GUARD::QAR2(I)
        • S(e);N_GUARD::QAR2(I),XS(e)
      • Refutation
        • S(e);
  • Actual
    • Q(I);
    • Threat
      • QAB(I)+S(G),DCHECK
    • Vars
      • Q(b);SBLOCK,XS(D)::QAB(I)+S(G),DCHECK
      • B(a);OGATE,XP(C)::R1(B),XB(a)
      • P(g);N_GUARD,XB(J)::QAB(I)+S(G)
      • Q(b);::QAB(I)+S(G),DCHECK,XQ(b)
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