MESON Chess Problem Database

Problem Display
PID: 8089 (8/2pp1K2/1pr1pP2/1P1k2NR/2n1r1P1/1Q3NP1/3p4/3R3B w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 1995

8/2pp1K2/1pr1pP2/1P1k2NR/2n1r1P1/1Q3NP1/3p4/3R3B

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Sxe4#
    • 1...Kd6
      • 2.Sxe4#
  • Tries
    • 1.Sxe4+?
      • 1...e5
        • 2.Rxe5#
        • 2.Qd3#
      • 1...Kxe4!
    • 1.Sxe6+?
      • 1...Re5
        • 2.Qd3#
      • 1...Kd6!
    • 1.Rxd2+?
      • 1...Kc5
        • 2.Sxe4#
        • 2.Sxe6#
      • 1...Rd4!
    • 1.Qd3+?
      • 1...Rd4
        • 2.Qxd4#
      • 1...Kc5!
  • Keys
    • 1.Sxd2!
      • 1...Kd4
        • 2.Sgf3#
      • 1...Kc5
        • 2.Sdxe4#
      • 1...Ke5
        • 2.Sdf3#
      • 1...Kd6
        • 2.Sgxe4#
      • 1...Rc5
        • 2.Sxc4#
      • 1...Rd6
        • 2.Sxe6#
      • 1...e5
        • 2.Sdxe4#
      • 1...d6
        • 2.Sxe6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(d);N_SPINP(a),N_SPINS(b),P-FLIGHT::R(I)+S(H),DCHECK,XR(c)
    • K(d);N_SPINS(b),P-FLIGHT::S(H),XR(c)
  • Tries
    • Try
      • S(H);CHECK,XR(c)
      • Refutation
        • K(d);N_SPINP(a),N_SPINS(b),S_FLIGHT,XS(H)
    • Try
      • S(H);CHECK,XP(g)
      • Vars
        • R(c);P_SPINR(c)::QAR2(C)
      • Refutation
        • K(d);N_SPINS(b),P-FLIGHT
    • Try
      • R(A);CHECK,XP(a)
      • Refutation
        • R(c);P_SPINR(c)
    • Try
      • Q(C);CHECK,N_PINP(a),N_PINS(b)
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::QAR1(C),XR(c)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • S(D);P_PINR(c),XP(a)
    • Vars
      • K(d);N_SPINR(c),N_SPINS(b),P-FLIGHT::S(H)
      • K(d);N_SPINR(c),N_SPINS(b),P-FLIGHT::S(D),XR(c)
      • K(d);N_SPINR(c),N_SPINS(b),P-FLIGHT::S(D)
      • K(d);N_SPINR(c),N_SPINS(b),P-FLIGHT::S(H),XR(c)
      • R(f);SBLOCK::R(A)+S(D),XS(b)
      • R(f);SBLOCK::R(I)+S(H),XP(g)
      • P(g);SBLOCK::R(A)+S(D),XR(c)
      • P(i);SBLOCK::R(I)+S(H),XP(g)
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