MESON Chess Problem Database

Problem Display
PID: 178504 (1nkB4/p7/R1P1NN2/1RPpK3/3P4/8/8/8 w - d5 0 1)

Bertlett, LA

Busmen's Chess Review, 1965

1nkB4/p7/R1P1NN2/1RPpK3/3P4/8/8/8

#2

9 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Sxc6+
      • 2.Rxc6#
    • 1...Sd7+
      • 2.cxd7#
  • Tries
    • 1.Kf4?
      • 1...Sxc6
        • 2.Rxc6#
      • 1...Sd7
        • 2.cxd7#
      • 1...Sxa6!
    • 1.Kxd5?
      • 1...Sxc6
        • 2.Rxc6#
      • 1...Sd7
        • 2.cxd7#
      • 1...Sxa6!
    • 1.Kf5?
      • 1...Sxc6
        • 2.Rxc6#
      • 1...Sd7
        • 2.cxd7#
      • 1...Sxa6!
    • 1.Kd6?
      • 1...Sxc6
        • 2.Rxc6#
      • 1...Sd7
        • 2.cxd7#
      • 1...Sxa6!
    • 1.Ba5?
      • 1...Sxc6+
        • 2.Rxc6#
      • 1...Sd7+
        • 2.cxd7#
      • 1...Sxa6!
    • 1.Be7?
      • 1...Sxc6+
        • 2.Rxc6#
      • 1...Sd7+
        • 2.cxd7#
      • 1...Sxa6!
    • 1.Rb1?
      • 1...Sxc6+
        • 2.Rxc6#
      • 1...Sd7+
        • 2.cxd7#
      • 1...Sxa6!
    • 1.Rb2?
      • 1...Sxc6+
        • 2.Rxc6#
      • 1...Sd7+
        • 2.cxd7#
      • 1...Sxa6!
    • 1.Rb3?
      • 1...Sxc6+
        • 2.Rxc6#
      • 1...Sd7+
        • 2.cxd7#
      • 1...Sxa6!
    • 1.Rb4?
      • 1...Sxc6+
        • 2.Rxc6#
      • 1...Sd7+
        • 2.cxd7#
      • 1...Sxa6!
  • Keys
    • 1.cxd5 ep!
      • 1...Sxc6+
        • 2.Rxc6#
      • 1...Sd7+
        • 2.cxd7#
      • 1...Sxa6
        • 2.d7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(c);CHECK,OGATE,XP(F)::R(E),XS(c)
    • S(c);CHECK,OGATE::P(F),XS(c)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • S(c);OGATE,XP(F)::R(E),XS(c)
        • S(c);OGATE::P(F),XS(c)
      • Refutation
        • S(c);XR(E)
    • Try
      • K(D);P-FLIGHT,XP(a)
      • Vars
        • S(c);OGATE,XP(F)::R(E),XS(c)
        • S(c);OGATE::P(F),XS(c)
      • Refutation
        • S(c);XR(E)
    • Try
      • K(D);P-FLIGHT
      • Vars
        • S(c);OGATE,XP(F)::R(E),XS(c)
        • S(c);OGATE::P(F),XS(c)
      • Refutation
        • S(c);XR(E)
    • Try
      • K(D);S_FLIGHT
      • Vars
        • S(c);OGATE,XP(F)::R(E),XS(c)
        • S(c);OGATE::P(F),XS(c)
      • Refutation
        • S(c);XR(E)
    • Try
      • B(I);
      • Vars
        • S(c);CHECK,OGATE,XP(F)::R(E),XS(c)
        • S(c);CHECK,OGATE::P(F),XS(c)
      • Refutation
        • S(c);XR(E)
    • Try
      • B(I);
      • Vars
        • S(c);CHECK,OGATE,XP(F)::R(E),XS(c)
        • S(c);CHECK,OGATE::P(F),XS(c)
      • Refutation
        • S(c);XR(E)
    • Try
      • R(B);
      • Vars
        • S(c);CHECK,OGATE,XP(F)::R(E),XS(c)
        • S(c);CHECK,OGATE::P(F),XS(c)
      • Refutation
        • S(c);XR(E)
    • Try
      • R(B);
      • Vars
        • S(c);CHECK,OGATE,XP(F)::R(E),XS(c)
        • S(c);CHECK,OGATE::P(F),XS(c)
      • Refutation
        • S(c);XR(E)
    • Try
      • R(B);
      • Vars
        • S(c);CHECK,OGATE,XP(F)::R(E),XS(c)
        • S(c);CHECK,OGATE::P(F),XS(c)
      • Refutation
        • S(c);XR(E)
    • Try
      • R(B);
      • Vars
        • S(c);CHECK,OGATE,XP(F)::R(E),XS(c)
        • S(c);CHECK,OGATE::P(F),XS(c)
      • Refutation
        • S(c);XR(E)
  • Actual
    • P(C);EP,XP(a)
    • Vars
      • S(c);CHECK,OGATE,XP(F)::R(E),XS(c)
      • S(c);CHECK,OGATE::P(F),XS(c)
      • S(c);N_GUARD,XR(E)::P(C)
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