MESON Chess Problem Database

Problem Display
PID: 266978 (8/p7/K7/2pk1B2/2Rp4/3p3p/N2P3B/8 w - - 0 1)

Rains, Cyril George

The Problemist, 1955

8/p7/K7/2pk1B2/2Rp4/3p3p/N2P3B/8

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc4
      • 2.Be6#
    • 1...Kc6
      • 2.Sb4#
  • Tries
    • 1.Bg3?
      • 1...Kxc4
        • 2.Be6#
      • 1...Kc6
        • 2.Sb4#
      • 1...h2!
    • 1.Bf4?
      • 1...Kxc4
        • 2.Be6#
      • 1...Kc6
        • 2.Sb4#
      • 1...h2!
    • 1.Bb8?
      • 1...Kxc4
        • 2.Be6#
      • 1...Kc6
        • 2.Sb4#
      • 1...h2!
    • 1.Bxh3?
      • 1...Kxc4
        • 2.Be6#
      • 1...Kc6
        • 2.Sb4#
      • 1...Ke4!
    • 1.Bd7?
      • 1...Kxc4
        • 2.Be6#
      • 1...Ke4!
    • 1.Bc8?
      • 1...Kxc4
        • 2.Be6#
      • 1...Kc6
        • 2.Sb4#
      • 1...Ke4!
    • 1.Rc1?
      • 1...Kc6
        • 2.Sb4#
      • 1...c4!
  • Keys
    • 1.Bg4!
      • 1...Kxc4
        • 2.Be6#
      • 1...Ke4
        • 2.Sc3#
      • 1...Kc6
        • 2.Sb4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(e);N_GUARD,S_FLIGHT,XR(D)::B(E)
    • K(e);N_GUARD,P_SPINP(d),S_FLIGHT::S(A)
  • Tries
    • Try
      • B(C);
      • Vars
        • K(e);N_GUARD,S_FLIGHT,XR(D)::B(E)
        • K(e);N_GUARD,P_SPINP(d),S_FLIGHT::S(A)
      • Refutation
        • P(b);
    • Try
      • B(C);
      • Vars
        • K(e);N_GUARD,S_FLIGHT,XR(D)::B(E)
        • K(e);N_GUARD,P_SPINP(d),S_FLIGHT::S(A)
      • Refutation
        • P(b);
    • Try
      • B(C);
      • Vars
        • K(e);N_GUARD,S_FLIGHT,XR(D)::B(E)
        • K(e);N_GUARD,P_SPINP(d),S_FLIGHT::S(A)
      • Refutation
        • P(b);
    • Try
      • B(E);XP(b)
      • Vars
        • K(e);N_GUARD,S_FLIGHT,XR(D)::B(E)
        • K(e);N_GUARD,P_SPINP(d),S_FLIGHT::S(A)
      • Refutation
        • K(e);P_SPINP(c),S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(e);N_GUARD,S_FLIGHT,XR(D)::B(E)
      • Refutation
        • K(e);P_SPINP(c),S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(e);N_GUARD,S_FLIGHT,XR(D)::B(E)
        • K(e);N_GUARD,P_SPINP(d),S_FLIGHT::S(A)
      • Refutation
        • K(e);P_SPINP(c),S_FLIGHT
    • Try
      • R(D);
      • Vars
        • K(e);P_SPINP(d),S_FLIGHT::S(A)
      • Refutation
        • P(d);
  • Actual
    • B(E);
    • Vars
      • K(e);N_GUARD,S_FLIGHT,XR(D)::B(E)
      • K(e);N_GUARD,P_SPINP(c),S_FLIGHT::S(A)
      • K(e);N_GUARD,P_SPINP(d),S_FLIGHT::S(A)
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