MESON Chess Problem Database

Problem Display
PID: 73803 (2B5/B5bK/2pP2N1/NpPkqn1R/1R1Pb3/1pp2P2/4Q1n1/4r3 w - - 0 1)

Klebes, Stefan

Freie Presse, 1993

2B5/B5bK/2pP2N1/NpPkqn1R/1R1Pb3/1pp2P2/4Q1n1/4r3

#2

12 + 11

6113 Problemschach-Jahrbuch (1993) 1994

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Se7#
      • 2.fxe4#
    • 1...Qg3
      • 2.Se7#
      • 2.fxe4#
    • 1...Qf4
      • 2.Se7#
    • 1...Qxd6
      • 2.fxe4#
    • 1...Qf6
      • 2.fxe4#
    • 1...Qe7
      • 2.Sxe7#
    • 1...Sxd4
      • 2.fxe4#
    • 1...Sh4
      • 2.fxe4#
    • 1...Sh6
      • 2.fxe4#
    • 1...Se7
      • 2.fxe4#
  • Tries
    • 1.Se7+?
      • 1...Sxe7+
        • 2.fxe4#
      • 1...Qxe7!
    • 1.Qxb5?
      • threat
        • 2.Qc4#
        • 2.Qxc6#
      • 1...Qxd4
        • 2.Qxc6#
      • 1...Qxd6
        • 2.Qc4#
      • 1...Bxf3
        • 2.Qxc6#
      • 1...Sxd4
        • 2.Qc4#
      • 1...Sxd6
        • 2.Qxc6#
      • 1...Qe8
        • 2.Qc4#
      • 1...Bd3
        • 2.Qxc6#
      • 1...Sge3
        • 2.Qxc6#
      • 1...Sfe3
        • 2.Qxc6#
      • 1...Se7
        • 2.Qc4#
      • 1...cxb5!
  • Keys
    • 1.Sc4!
      • threat
        • 2.Sb6#
      • 1...Kxd4
        • 2.Se3#
      • 1...Qxd4
        • 2.Se7#
      • 1...Sxd4
        • 2.fxe4#
      • 1...bxc4
        • 2.Qxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(h);N_GUARD,P_SPINS(i)::S(I)
    • Q(h);N_GUARD,P_SPINS(i),XP(H)::P(B),XB(e)
    • Q(h);N_GUARD,P_SPINS(i)::P(B),XB(e)
    • Q(h);N_GUARD,P_SPINS(i)::S(I),XQ(h)
    • S(i);P_PINS(I),P_SPINQ(h),XP(D)::P(B),XB(e)
    • S(i);P_PINS(I),P_SPINQ(h)::P(B),XB(e)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • S(i);CHECK,P_SPINQ(h),XS(I)::P(B),XB(e)
      • Refutation
        • Q(h);P_SPINS(i),XS(I)
    • Try
      • Q(A);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • Q(h);P_SPINS(i),XP(D)::QAB1(A),XP(j)
        • Q(h);P_SPINS(i),XP(H)::QAB1(A)
        • B(e);XP(B)::QAB1(A),XP(j)
        • S(i);P_PINS(I),P_SPINQ(h),XP(D)::QAB1(A)
        • S(i);P_PINS(I),P_SPINQ(h),XP(H)::QAB1(A),XP(j)
        • Q(h);P_SPINS(i)::QAB1(A)
        • B(e);::QAB1(A),XP(j)
        • S(b);::QAB1(A),XP(j)
        • S(i);P_PINS(I),P_SPINQ(h)::QAB1(A),XP(j)
        • S(i);P_PINS(I),P_SPINQ(h)::QAB1(A)
      • Refutation
        • P(j);XQ(A)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(g);P-FLIGHT,XP(D)::R(C)+S(E)
      • Q(h);N_GUARD,P_SPINS(i),SBLOCK,XP(D)::S(I)
      • S(i);P_PINS(I),P_SPINQ(h),SBLOCK,XP(D)::P(B),XB(e)
      • P(f);OGATE,XS(E)::QAB1(A),XP(f)
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