MESON Chess Problem Database

Problem Display
PID: 276883 (bb1R4/8/6Q1/n1pr1N1K/Np6/1B1kBPP1/3P4/8 w - - 0 1)

Meurs, Abraham

Western Morning News, 1926

(First published on Sat Dec 11 1926)

bb1R4/8/6Q1/n1pr1N1K/Np6/1B1kBPP1/3P4/8

#2

10 + 7

15239 Valois Notebooks 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Sd4#
  • Tries
    • 1.Qa6+?
      • 1...Sc4
        • 2.Qxc4#
      • 1...c4!
  • Keys
    • 1.Bd1!
      • threat
        • 2.Sb2#
      • 1...Kc4
        • 2.Qa6#
      • 1...Be5
        • 2.Sd6#
      • 1...Sc4
        • 2.Sxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(g);N_PINS(G)::QAB(I)+S(G)
  • Tries
    • Try
      • Q(I);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAB1(I),XS(c)
      • Refutation
        • P(d);P_SPINP(d)
  • Actual
    • B(B);
    • Threat
      • S(F)
    • Vars
      • K(a);N_SPINR(e),S_CUTP(d),S_CUTS(c),S_FLIGHT::QAB(I)
      • B(g);N_PINS(G)::QAB(I)+S(G)
      • S(c);SBLOCK::S(F),XP(d)
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