MESON Chess Problem Database

Problem Display
PID: 1080 (8/1qN5/2pr4/2k1PB2/n1P5/1R2NK2/5B2/8 w - - 0 1)

Cotton, William C

The Westminster Papers, 1871

8/1qN5/2pr4/2k1PB2/n1P5/1R2NK2/5B2/8

#2

8 + 5

1693 English Chess Problems 1876

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Se6#
    • 1...Rd2
      • 2.Se6#
    • 1...Rd3
      • 2.Se6#
    • 1...Rd4
      • 2.Se6#
    • 1...Rd5
      • 2.Se6#
    • 1...Re6
      • 2.Sxe6#
    • 1...Rd7
      • 2.Se6#
    • 1...Rd8
      • 2.Se6#
  • Keys
    • 1.Bd3!
      • threat
        • 2.Sed5#
      • 1...Rf6+
        • 2.Sf5#
      • 1...Kd4
        • 2.Sg4#
      • 1...Rxd3
        • 2.Se6#
      • 1...Rd4
        • 2.Se6#
      • 1...Rd5
        • 2.Sexd5#
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • R(d);N_GUARD::S(H)
    • R(d);N_GUARD,P_PINS(C)::S(H)
    • R(d);N_GUARD::S(H),XR(d)
  • Actual
    • B(G);
    • Threat
      • B(A)+S(C)
    • Vars
      • R(d);CHECK,N_GUARD::B(A)+S(C)
      • K(b);S_FLIGHT::B(A)+S(C)
      • R(d);N_GUARD,P_PINS(C),XB(G)::S(H)
      • R(d);N_GUARD::S(H)
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