MESON Chess Problem Database

Problem Display
PID: 133608 (b6B/2Qp4/KP1p4/2bk4/p1N1R3/8/2r5/r6B w - - 0 1)

Brotherton, David WA

The Field, 1961

(First published on Thu Aug 17 1961)

b6B/2Qp4/KP1p4/2bk4/p1N1R3/8/2r5/r6B

#2

7 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Bg1
      • 2.Re2#
      • 2.Qxd6#
    • 1...Bf2
      • 2.Re1#
      • 2.Qxd6#
    • 1...Ba3
      • 2.Se3#
    • 1...Be3
      • 2.Sxe3#
      • 2.Qxd6#
    • 1...Bb4
      • 2.Se3#
    • 1...Bd4
      • 2.Re5#
    • 1...Bxb6
      • 2.Sxb6#
      • 2.Qxd6#
    • 1...Bb7+
      • 2.Qxb7#
  • Keys
    • 1.Qc8!
      • threat
        • 2.Qxa8#
      • 1...Bb7+
        • 2.Qxb7#
      • 1...Bxb6
        • 2.Sxb6#
      • 1...Bg1
        • 2.Re2#
      • 1...Bf2
        • 2.Re1#
      • 1...Ba3
        • 2.Se3#
      • 1...Be3
        • 2.Sxe3#
      • 1...Bb4
        • 2.Se3#
      • 1...Bd4
        • 2.Re5#
      • 1...Bc6
        • 2.Qg8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(d);N_GUARD::S(B)
    • B(d);SBLOCK::B(A)+R(C),DCHECK
    • B(h);CHECK,N_GUARD::QAB(F),XB(h)
  • Actual
    • Q(F);
    • Threat
      • QAB(F),XB(h)
    • Vars
      • B(h);CHECK,N_GUARD::QAB(F),XB(h)
      • B(d);XP(E)::S(B),XB(d)
      • B(d);S_CUTR(a)::B(A)+R(C)
      • B(d);S_CUTR(b)::B(A)+R(C)
      • B(d);N_GUARD::S(B)
      • B(d);N_GUARD::S(B),XB(d)
      • B(d);SBLOCK::B(A)+R(C),DCHECK
      • B(h);SBLOCK::QAB(F)
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