MESON Chess Problem Database

Problem Display
PID: 267332 (4K3/4P1p1/2n1kb2/7N/1n1pBQ2/3p4/5R2/8 w - - 0 1)

Cox, C

Sunday Referee, 1938

(First published on Sun Oct 2 1938)

4K3/4P1p1/2n1kb2/7N/1n1pBQ2/3p4/5R2/8

#2

6 + 7

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Bh4
      • 2.Sxg7#
    • 1...Bg5
      • 2.Sxg7#
    • 1...Bxe7
      • 2.Sxg7#
    • 1...Sd5
      • 2.Bf5#
    • 1...g5
      • 2.Qxf6#
    • 1...g6
      • 2.Qxf6#
  • Keys
    • 1.Qc7!
      • threat
        • 2.Sf4#
      • 1...Bxe7
        • 2.Sxg7#
      • 1...Bh4
        • 2.Sxg7#
      • 1...Be5
        • 2.Qd7#
      • 1...Bg5
        • 2.Sxg7#
      • 1...Sd5
        • 2.Bf5#
      • 1...g5
        • 2.Rxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(f);N_GUARD::S(D),XP(g)
    • B(f);N_GUARD,XP(E)::S(D),XP(g)
    • S(b);SBLOCK::B(B)
    • P(g);N_GUARD::QAR1(C),XB(f)
  • Actual
    • Q(C);
    • Threat
      • S(D)
    • Vars
      • B(f);N_GUARD,XP(E)::S(D),XP(g)
      • B(f);N_GUARD::S(D),XP(g)
      • B(f);SBLOCK::QAB1(C)
      • S(b);SBLOCK::B(B)
      • P(g);N_GUARD::R1(A),XB(f)
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