MESON Chess Problem Database

Problem Display
PID: 7977 (k1N5/n1pP4/N1P5/PpKB4/1P6/8/8/8 w - b5 0 1)

Rice, John Michael

Chess Problems for Solving, 1995

k1N5/n1pP4/N1P5/PpKB4/1P6/8/8/8

#2

8 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc6
      • 2.Bxc6#
  • Tries
    • 1.Kd4?
      • 1...Sxc6+
        • 2.Bxc6#
      • 1...Sxc8!
    • 1.Bh1?
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sxc8!
    • 1.Bg2?
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sxc8!
    • 1.Bf3?
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sxc8!
    • 1.Be4?
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sxc8!
    • 1.d8Q?
      • threat
        • 2.Sb6#
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sxc8!
    • 1.d8S?
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sxc8!
    • 1.d8B?
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sxc8!
    • 1.d8R?
      • threat
        • 2.Sb6#
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sxc8!
  • Keys
    • 1.axb5 ep!
      • threat
        • 2.b7#
      • 1...cxb6+
        • 2.Sxb6#
      • 1...Sxc6
        • 2.Bxc6#
      • 1...Sxc8
        • 2.dxc8Q#
        • 2.dxc8R#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(b);OGATE,P_SPINS(b),XP(F)::B(D),XS(b)
  • Tries
    • Try
      • K(C);S_FLIGHT
      • Vars
        • S(b);CHECK,OGATE,P_SPINS(b),XP(F)::B(D),XS(b)
      • Refutation
        • S(b);XS(H)
    • Try
      • B(D);
      • Vars
        • S(b);OGATE,P_SPINS(b),XP(F)::B(D),XS(b)
      • Refutation
        • S(b);XS(H)
    • Try
      • B(D);
      • Vars
        • S(b);OGATE,P_SPINS(b),XP(F)::B(D),XS(b)
      • Refutation
        • S(b);XS(H)
    • Try
      • B(D);
      • Vars
        • S(b);OGATE,P_SPINS(b),XP(F)::B(D),XS(b)
      • Refutation
        • S(b);XS(H)
    • Try
      • B(D);
      • Vars
        • S(b);OGATE,P_SPINS(b),XP(F)::B(D),XS(b)
      • Refutation
        • S(b);XS(H)
    • Try
      • P(G);
      • Threat
        • QAR(G)+S(H),DCHECK
      • Vars
        • S(b);OGATE,P_SPINS(b),XP(F)::B(D),XS(b)
      • Refutation
        • S(b);P_SPINS(b),XS(H)
    • Try
      • P(G);
      • Vars
        • S(b);OGATE,P_SPINS(b),XP(F)::B(D),XS(b)
      • Refutation
        • S(b);XS(H)
    • Try
      • P(G);
      • Vars
        • S(b);OGATE,P_SPINS(b),XP(F)::B(D),XS(b)
      • Refutation
        • S(b);XS(H)
    • Try
      • P(G);
      • Threat
        • R(G)+S(H),DCHECK
      • Vars
        • S(b);OGATE,P_SPINS(b),XP(F)::B(D),XS(b)
      • Refutation
        • S(b);P_SPINS(b),XS(H)
  • Actual
    • P(B);EP,XP(a)
    • Threat
      • P(B)
    • Vars
      • P(c);CHECK,XP(B)::S(H),XP(c)
      • S(b);OGATE,P_SPINS(b),XP(F)::B(D),XS(b)
      • S(b);OGATE,XS(H)::PXS(b)=Q
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