MESON Chess Problem Database

Problem Display
PID: 272405 (8/8/1p1p2n1/3P4/b1kNNR2/b7/P1BQ4/5K2 w - - 0 1)

Wigan, TK

Sunday Referee, 1934

(First published on Sun Jun 17 1934)

8/8/1p1p2n1/3P4/b1kNNR2/b7/P1BQ4/5K2

#2

8 + 6

15239 Valois Notebooks 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Bb3
      • 2.Bxb3#
    • 1...Bb5
      • 2.Bb3#
    • 1...Bc6
      • 2.Bb3#
    • 1...Bd7
      • 2.Bb3#
    • 1...Be8
      • 2.Bb3#
  • Tries
    • 1.Se6?
      • threat
        • 2.Sxd6#
      • 1...Kb5
        • 2.Bd3#
      • 1...Sxf4!
    • 1.Qd3+?
      • 1...Kb4
        • 2.Qc3#
      • 1...Kxd5!
  • Keys
    • 1.Sb5!
      • threat
        • 2.Sxa3#
      • 1...Kxb5
        • 2.Bd3#
      • 1...Bxb5
        • 2.Bb3#
      • 1...Bc1
        • 2.Sbxd6#
      • 1...Bb2
        • 2.Sbxd6#
      • 1...Bb4
        • 2.Qd3#
      • 1...Bc5
        • 2.Sexd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • B(b);N_GUARD::B(C),XB(b)
    • B(b);N_GUARD::B(C)
  • Tries
    • Try
      • S(E);
      • Threat
        • R(G)+S(F),DCHECK,XP(e)
      • Vars
        • K(c);N_GUARD,S_FLIGHT::B(C)
      • Refutation
        • S(f);XR(G)
    • Try
      • Q(D);CHECK
      • Vars
        • K(c);N_GUARD,P-FLIGHT::QAB1(D)
      • Refutation
        • K(c);S_FLIGHT,XP(H)
  • Actual
    • S(E);
    • Threat
      • S(E),XB(a)
    • Vars
      • K(c);N_GUARD,S_FLIGHT,XS(E)::B(C)
      • B(b);N_GUARD,SBLOCK,XS(E)::B(C)
      • B(a);N_GUARD::S(E),XP(e)
      • B(a);SBLOCK::QAB1(D)
      • B(a);SBLOCK::R(G)+S(F),DCHECK,XP(e)
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