MESON Chess Problem Database

Problem Display
PID: 210548 (8/2pB4/2np1R2/3k4/K2n4/3P2B1/1Q6/8 w - - 0 1)

Evans, TC

The Observer, 1921

(First published on Sun Apr 3 1921)

8/2pB4/2np1R2/3k4/K2n4/3P2B1/1Q6/8

#2

6 + 5

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Keys
    • 1.Bf2!
      • 1...Kc5
        • 2.Qb5#
      • 1...Ke5
        • 2.Rf5#
      • 1...Sc2
        • 2.Be6#
        • 2.Qb5#
      • 1...Se2
        • 2.Be6#
        • 2.Qb5#
      • 1...Sb3
        • 2.Be6#
      • 1...Sf3
        • 2.Be6#
        • 2.Qb5#
      • 1...Sb5
        • 2.Be6#
        • 2.Qxb5#
      • 1...Sf5
        • 2.Be6#
        • 2.Qb5#
      • 1...Se6
        • 2.Bxe6#
      • 1...Sb4
        • 2.Qxd4#
      • 1...Sa5
        • 2.Qxd4#
      • 1...Se5
        • 2.Qxd4#
      • 1...Sa7
        • 2.Qxd4#
      • 1...Se7
        • 2.Qxd4#
      • 1...Sb8
        • 2.Qxd4#
      • 1...Sd8
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Actual
    • B(C);
    • Vars
      • K(b);P-FLIGHT,P_SPINS(a)::QAR1(A)
      • K(b);P-FLIGHT,P_SPINS(a)::R1(E)
      • S(a);N_GUARD::B(F)
      • S(a);N_GUARD::B(F),XS(a)
      • S(c);N_GUARD::QAR1(A),XS(a)
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