MESON Chess Problem Database

Problem Display
PID: 891 (3N4/2bppPp1/b7/1Rp1k1pR/2P1NnK1/1rpB2Q1/8/B7 w - - 0 1)

Rice, John Michael

British Chess Magazine, 1995

3N4/2bppPp1/b7/1Rp1k1pR/2P1NnK1/1rpB2Q1/8/B7

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Bxc3#
    • 1...Rb4
      • 2.Bxc3#
    • 1...Rxb5
      • 2.Bxc3#
  • Tries
    • 1.Sxc3?
      • threat
        • 2.Qxf4#
      • 1...Kd4
        • 2.Se2#
      • 1...Kd6
        • 2.Se4#
      • 1...Kf6
        • 2.Sd5#
      • 1...Bxd8!
    • 1.Sxg5?
      • threat
        • 2.Qxf4#
      • 1...Kd6
        • 2.Se4#
      • 1...Kf6
        • 2.Sh7#
      • 1...Kd4!
    • 1.Rxc5+?
      • 1...d5
        • 2.Rxd5#
      • 1...Kd4!
  • Keys
    • 1.Sxc5!
      • threat
        • 2.Qxf4#
      • 1...Kd4
        • 2.Sxb3#
      • 1...Kd6
        • 2.Se4#
      • 1...Kf6
        • 2.Sxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(a);N_GUARD::B(A),XP(b)
    • R(a);N_GUARD,XR(G)::B(A),XP(b)
  • Tries
    • Try
      • S(E);P_PINP(d),XP(b)
      • Threat
        • QAB1(C),XS(c)
      • Vars
        • K(e);N_SPINP(d),N_SPINS(c),S_FLIGHT::B(A)+S(E),DCHECK
        • K(e);N_SPINP(d),S_FLIGHT::S(E)
      • Refutation
        • B(h);XS(J)
    • Try
      • S(E);XP(f)
      • Threat
        • QAB1(C),XS(c)
      • Vars
        • K(e);N_SPINP(b),S_FLIGHT::S(E)
        • K(e);N_SPINS(c),S_FLIGHT::S(E)
      • Refutation
        • K(e);N_SPINS(c),S_FLIGHT
    • Try
      • R(G);CHECK,XP(d)
      • Vars
        • P(i);::R1(G),XP(i)
      • Refutation
        • K(e);N_SPINS(c),S_FLIGHT
  • Actual
    • S(E);XP(d)
    • Threat
      • QAB1(C),XS(c)
    • Vars
      • K(e);N_SPINS(c),S_FLIGHT::S(E),XR(a)
      • K(e);N_SPINP(b),S_FLIGHT::S(E)
      • K(e);N_SPINS(c),S_FLIGHT::S(E),XP(i)
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