MESON Chess Problem Database

Problem Display
PID: 204614 (8/5N2/2p2K2/2pk4/5Q2/1r6/8/8 w - - 0 1)

Barclay, William L

Deutsche Schachzeitung, 1971

8/5N2/2p2K2/2pk4/5Q2/1r6/8/8

#2

3 + 4

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...c4
      • 2.Qe5#
  • Keys
    • 1.Qd2+!
      • 1...Kc4
        • 2.Sd6#
      • 1...Ke4
        • 2.Sg5#
      • 1...Rd3
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(b);SBLOCK::QAR1(A)
  • Actual
    • Q(A);CHECK
    • Vars
      • K(c);S_FLIGHT::S(C)
      • R(a);N_GUARD,P_SPINR(a)::QAR2(A),XR(a)
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