MESON Chess Problem Database

Problem Display
PID: 210417 (K3R3/6pq/2N5/6p1/4P3/1pP1k2N/5p2/1b1Q4 w - - 0 1)

Amos, FJ

The Observer, 1920

(First published on Sun Dec 19 1920)

K3R3/6pq/2N5/6p1/4P3/1pP1k2N/5p2/1b1Q4

#2

7 + 7

15239 Valois Notebooks 2020

SOLUTION

  • SOUND
  • Keys
    • 1.Se7!
      • threat
        • 2.Sd5#
      • 1...Kxe4
        • 2.Qe2#
      • 1...Qf5
        • 2.Sxf5#
      • 1...Qg8
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • K(d);P-FLIGHT,XP(D)::QAR2(A)
      • Q(g);N_GUARD::S(E),XQ(g)
      • Q(g);N_GUARD,P_PINR(G)::S(E)
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