MESON Chess Problem Database

Problem Display
PID: 9894 (1Q2n3/1pr1B3/1K2B3/PRN1kP2/1P3p2/2PPbn2/4R3/8 w - - 0 1)

Binder, Friedrich

Osterreichische Schachzeitung, 1960

1Q2n3/1pr1B3/1K2B3/PRN1kP2/1P3p2/2PPbn2/4R3/8

#2

12 + 7

14730 Problempalette II (Chlubna/Wenda) 1991

SOLUTION

  • SOUND
  • Sets
    • 1...Se1
      • 2.d4#
    • 1...Sg1
      • 2.d4#
    • 1...Sd2
      • 2.d4#
    • 1...Sh2
      • 2.d4#
    • 1...Sd4
      • 2.Sd7#
    • 1...Sh4
      • 2.d4#
    • 1...Sg5
      • 2.d4#
    • 1...Sd6
      • 2.Qh8#
    • 1...Sf6
      • 2.Qxc7#
    • 1...Sg7
      • 2.Qxc7#
  • Tries
    • 1.Re1?
      • 1...Sg1
        • 2.d4#
      • 1...Sd2
        • 2.d4#
      • 1...Sh2
        • 2.d4#
      • 1...Sd4
        • 2.Sd7#
      • 1...Sh4
        • 2.d4#
      • 1...Sg5
        • 2.d4#
      • 1...Sd6
        • 2.Qh8#
      • 1...Sf6
        • 2.Qxc7#
      • 1...Sg7
        • 2.Qxc7#
      • 1...Sxe1!
    • 1.Qxc7+?
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sxc7!
    • 1.a6?
      • 1...Se1
        • 2.d4#
      • 1...Sg1
        • 2.d4#
      • 1...Sd2
        • 2.d4#
      • 1...Sh2
        • 2.d4#
      • 1...Sd4
        • 2.Sd7#
      • 1...Sh4
        • 2.d4#
      • 1...Sg5
        • 2.d4#
      • 1...Sd6
        • 2.Qh8#
      • 1...Sf6
        • 2.Qxc7#
      • 1...Sg7
        • 2.Qxc7#
      • 1...bxa6!
  • Keys
    • 1.Ka7!
      • 1...b6+
        • 2.Sb7#
      • 1...Se1
        • 2.d4#
      • 1...Sg1
        • 2.d4#
      • 1...Sd2
        • 2.d4#
      • 1...Sh2
        • 2.d4#
      • 1...Sd4
        • 2.Sd7#
      • 1...Sh4
        • 2.d4#
      • 1...Sg5
        • 2.d4#
      • 1...Sd6
        • 2.Qh8#
      • 1...Sf6
        • 2.Qxc7#
      • 1...Sg7
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(b);N_GUARD::P(C)
    • S(b);N_PINS(G)::R(F)+S(G),DCHECK
    • S(g);N_SPINR(f),OGATE::QAB(L)
    • S(g);N_GUARD::QAB(L),XR(f)
  • Tries
    • Try
      • R(A);
      • Vars
        • S(b);N_GUARD::P(C)
        • S(b);N_PINS(G)::R(F)+S(G),DCHECK
        • S(g);N_SPINR(f),OGATE::QAB(L)
        • S(g);N_GUARD::QAB(L),XR(f)
      • Refutation
        • S(b);N_SPINB(a),XR(A)
    • Try
      • Q(L);CHECK,XR(f)
      • Vars
        • S(g);N_GUARD,P_SPINS(g)::QAB1(L),XS(g)
      • Refutation
        • S(g);XQ(L)
    • Try
      • P(E);
      • Vars
        • S(b);N_GUARD::P(C)
        • S(b);N_PINS(G)::R(F)+S(G),DCHECK
        • S(g);N_SPINR(f),OGATE::QAB(L)
        • S(g);N_GUARD::QAB(L),XR(f)
      • Refutation
        • P(e);XP(E)
  • Actual
    • K(I);S_FLIGHT
    • Vars
      • P(e);CHECK,N_PINS(G)::R(F)+S(G)
      • S(b);N_GUARD::P(C)
      • S(b);N_PINS(G)::R(F)+S(G),DCHECK
      • S(g);N_SPINR(f),OGATE::QAB(L)
      • S(g);N_GUARD::QAB(L),XR(f)
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