MESON Chess Problem Database

Problem Display
PID: 199537 (1B5Q/6P1/2K1Np2/2P2P2/pRP1kNp1/3bP1n1/2qPpR2/1B6 w - - 0 1)

Miloseski, Bosko

Suomen Shakki, 1988

1B5Q/6P1/2K1Np2/2P2P2/pRP1kNp1/3bP1n1/2qPpR2/1B6

#2

14 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf5
      • 2.Qh7#
    • 1...Qd1
      • 2.Bxd3#
    • 1...Qc1
      • 2.Bxd3#
    • 1...Qa2
      • 2.Bxd3#
    • 1...Qb2
      • 2.Bxd3#
    • 1...Qxc4
      • 2.Bxd3#
    • 1...Bxc4
      • 2.Bxc2#
    • 1...Sxf5
      • 2.Qh1#
  • Tries
    • 1.Sg2?
      • threat
        • 2.Rf4#
      • 1...Bxc4
        • 2.Bxc2#
      • 1...Sh5!
    • 1.Sd5?
      • threat
        • 2.Sxf6#
        • 2.Rf4#
      • 1...Qxd2
        • 2.Rf4#
      • 1...Bxc4
        • 2.Bxc2#
      • 1...Qb2
        • 2.Rf4#
      • 1...Qc3
        • 2.Sxc3#
        • 2.Rf4#
      • 1...Sh5!
    • 1.Qh1+?
      • 1...Kxf5
        • 2.Qd5#
        • 2.Qh7#
      • 1...Sxh1!
    • 1.Qd8?
      • threat
        • 2.Qd5#
      • 1...Kxf5
        • 2.Qd5#
      • 1...Qxd2!
  • Keys
    • 1.Qe8!
      • threat
        • 2.Sd4#
      • 1...Kxf5
        • 2.Qg6#
      • 1...Qxc4
        • 2.Bxd3#
      • 1...Bxc4
        • 2.Bxc2#
      • 1...Sxf5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • K(f);OGATEB,S_FLIGHT,XP(I)::QAB(N)
    • Q(a);OGATE,P_SPINB(c)::B(A),XB(c)
    • Q(a);OGATE,P_PINP(H),P_SPINB(c),P_SPINQ(a),XP(F)::B(A),XB(c)
    • B(c);OGATEB,P_SPINB(c),P_SPINQ(a),XP(F)::B(A),XQ(a)
    • S(d);N_GUARD,SBLOCK,XP(I)::QAB(N)
  • Tries
    • Try
      • S(G);
      • Threat
        • R1(C)
      • Vars
        • B(c);OGATEB,P_SPINB(c),P_SPINQ(a),XP(F)::B(A),XQ(a)
      • Refutation
        • S(d);
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Vars
        • Q(a);P_SPINB(c),XP(B)::R1(C)
        • B(c);OGATEB,P_SPINB(c),P_SPINQ(a),XP(F)::B(A),XQ(a)
        • Q(a);P_SPINB(c)::R1(C)
      • Refutation
        • S(d);
    • Try
      • Q(N);CHECK
      • Refutation
        • S(d);XQ(N)
    • Try
      • Q(N);
      • Threat
        • QAB1(N)
      • Vars
        • K(f);S_FLIGHT,XP(I)::QAR2(N)
      • Refutation
        • Q(a);P_SPINB(c),XP(B)
  • Actual
    • Q(N);
    • Threat
      • QAR(N)+S(K)
    • Vars
      • K(f);OGATEB,S_FLIGHT,XP(I)::QAB1(N)
      • Q(a);OGATE,P_PINP(H),P_SPINB(c),P_SPINQ(a),XP(F)::B(A),XB(c)
      • B(c);OGATEB,P_SPINB(c),P_SPINQ(a),XP(F)::B(A),XQ(a)
      • S(d);SBLOCK,XP(I)::QAR(N)+S(K),DCHECK
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