MESON Chess Problem Database

Problem Display
PID: 862 (1n3B1K/8/8/8/8/1k2N3/Rp1P4/rB5R w - - 0 1)

Hancock, Richard

British Chess Magazine, 1988

1n3B1K/8/8/8/8/1k2N3/Rp1P4/rB5R

#2

7 + 4

3310 2345 Chess Problems 1997

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb1
      • 2.Ra3#
    • 1...Rxa2
      • 2.Bc2#
  • Tries
    • 1.Bd3?
      • threat
        • 2.Bc4#
      • 1...Kxa2
        • 2.Bc4#
      • 1...Rxa2
        • 2.Bc2#
      • 1...Rc1
        • 2.Ra3#
      • 1...Rxh1+!
    • 1.Be4?
      • threat
        • 2.Bd5#
      • 1...Kxa2
        • 2.Bd5#
      • 1...Rxa2
        • 2.Bc2#
      • 1...Rc1
        • 2.Ra3#
      • 1...Rxh1+!
    • 1.Bf5?
      • threat
        • 2.Be6#
      • 1...Kxa2
        • 2.Be6#
      • 1...Rxa2
        • 2.Bc2#
      • 1...Rc1
        • 2.Ra3#
      • 1...Rxh1+!
    • 1.Bg6?
      • threat
        • 2.Bf7#
      • 1...Kxa2
        • 2.Bf7#
      • 1...Rxa2
        • 2.Bc2#
      • 1...Rc1
        • 2.Ra3#
      • 1...Rf1
        • 2.Ra3#
      • 1...Rxh1+!
  • Keys
    • 1.Bh7!
      • threat
        • 2.Bg8#
      • 1...Kxa2
        • 2.Bg8#
      • 1...Rxh1
        • 2.Ra3#
      • 1...Rxa2
        • 2.Bc2#
      • 1...Rc1
        • 2.Ra3#
      • 1...Rf1
        • 2.Ra3#
      • 1...Rg1
        • 2.Ra3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • R(a);N_GUARD,XB(A)::R1(C)
    • R(a);SBLOCK,XR(C)::B(A)
  • Tries
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • K(c);S_FLIGHT,XR(C)::B(A)
        • R(a);SBLOCK,XR(C)::B(A)
        • R(a);N_GUARD::R1(C)
      • Refutation
        • R(a);CHECK,XR(B)
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • K(c);S_FLIGHT,XR(C)::B(A)
        • R(a);SBLOCK,XR(C)::B(A)
        • R(a);N_GUARD::R1(C)
      • Refutation
        • R(a);CHECK,XR(B)
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • K(c);S_FLIGHT,XR(C)::B(A)
        • R(a);SBLOCK,XR(C)::B(A)
        • R(a);N_GUARD::R1(C)
      • Refutation
        • R(a);CHECK,XR(B)
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • K(c);S_FLIGHT,XR(C)::B(A)
        • R(a);SBLOCK,XR(C)::B(A)
        • R(a);N_GUARD::R1(C)
      • Refutation
        • R(a);CHECK,XR(B)
  • Actual
    • B(A);
    • Threat
      • B(A)
    • Vars
      • K(c);S_FLIGHT,XR(C)::B(A)
      • R(a);N_GUARD,P_PINB(A),XR(B)::R1(C)
      • R(a);SBLOCK,XR(C)::B(A)
      • R(a);N_GUARD::R1(C)
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