MESON Chess Problem Database

Problem Display
PID: 162525 (8/8/8/3p4/3K1p2/5B2/4Nk1b/3Q1nN1 w - - 0 1)

Evans, TC

The Observer, 1924

(First published on Sun Sep 7 1924)

8/8/8/3p4/3K1p2/5B2/4Nk1b/3Q1nN1

#2

5 + 5

15239 Valois Notebooks 2017

SOLUTION

  • SOUND
  • Keys
    • 1.Sg3!
      • 1...Kxg1
        • 2.Qxf1#
      • 1...Kxg3
        • 2.Qe1#
      • 1...Bxg1
        • 2.Sh1#
      • 1...Bxg3
        • 2.Sh3#
      • 1...Sxg3
        • 2.Sh3#
      • 1...fxg3
        • 2.Sh3#
      • 1...Sd2
        • 2.Sh1#
      • 1...Se3
        • 2.Sh1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(C);
    • Vars
      • K(b);P_SPINS(a),S_FLIGHT,XS(B)::QAR1(A),XS(a)
      • K(b);S_FLIGHT,XS(C)::QAB(A)
      • B(c);SBLOCK,XS(B)::S(C)
      • B(c);SBLOCK,XS(C)::S(B)
      • S(a);SBLOCK,XS(C)::S(B)
      • P(d);SBLOCK,XS(C)::S(B)
      • S(a);::S(C)
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