MESON Chess Problem Database

Problem Display
PID: 64458 (3br3/2n1Pk1P/3pq1NB/7p/3N4/5K2/B3R3/5RQ1 w - - 0 1)

Kovacevic, Marjan

Tominic, Ivo

1st Place, Liga Problemista, 1982

3br3/2n1Pk1P/3pq1NB/7p/3N4/5K2/B3R3/5RQ1

#2

10 + 7

3752 FIDE Album (1980-1982) 1988

SOLUTION

  • SOUND
  • Sets
    • 1...Qxa2
      • 2.Ke3#
      • 2.Ke4#
    • 1...Qb3+
      • 2.Ke4#
    • 1...Qc4
      • 2.Ke3#
      • 2.Ke4#
    • 1...Qd5+
      • 2.Ke3#
    • 1...Rf8
      • 2.exf8Q#
      • 2.exf8R#
  • Tries
    • 1.Se5+?
      • 1...Kf6
        • 2.Qg5#
        • 2.Qg7#
      • 1...dxe5
        • 2.Qg7#
      • 1...Kxe7!
    • 1.Sh8+?
      • 1...Kf6
        • 2.Qg5#
        • 2.Qg7#
      • 1...Kxe7
        • 2.Qg7#
      • 1...Rxh8!
    • 1.Bxe6+?
      • 1...Kf6
        • 2.Ke3#
        • 2.Ke4#
        • 2.Qg5#
      • 1...Sxe6!
    • 1.exd8S+?
      • 1...Kf6
        • 2.Qg5#
      • 1...Rxd8!
  • Keys
    • 1.Sf8!
      • threat
        • 2.Qg7#
      • 1...Qb3+
        • 2.Kg2#
      • 1...Qd5+
        • 2.Kg3#
      • 1...Kf6
        • 2.Qg7#
      • 1...Kxe7
        • 2.Qg7#
      • 1...Rxe7
        • 2.Qg6#
      • 1...Rxf8
        • 2.exf8Q#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • Q(c);CHECK::R(A)+K(E)
    • R(g);OGATE::PXR(g)=Q
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • P(b);XS(G)::QAR1(B)
      • Refutation
        • K(e);N_SPINQ(c),P-FLIGHT,XP(I)
    • Try
      • S(G);CHECK
      • Vars
        • K(e);P-FLIGHT,XP(I)::QAR2(B)
      • Refutation
        • R(g);XS(G)
    • Try
      • B(C);CHECK,XQ(c)
      • Refutation
        • S(d);XB(C)
    • Try
      • P(I);CHECK,XB(f)
      • Vars
        • K(e);N_SPINQ(c),P-FLIGHT::QAB1(B)
      • Refutation
        • R(g);XS(I)
  • Actual
    • S(G);
    • Threat
      • QAR1(B)
    • Vars
      • Q(c);CHECK::R(A)+K(E)
      • K(e);N_SPINQ(c),P-FLIGHT::QAB1(B)
      • K(e);P-FLIGHT,XP(I)::QAR2(B)
      • R(g);SBLOCK,XP(I)::QAB1(B)
      • R(g);OGATE,XS(G)::PXR(g)=Q
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