MESON Chess Problem Database

Problem Display
PID: 1180 (8/2NK1p2/8/2k1N3/r1B5/7p/8/1Q3b2 w - - 0 1)

Willmott, Arthur

Problem Observer, 1996

8/2NK1p2/8/2k1N3/r1B5/7p/8/1Q3b2

#2

5 + 5

136 Problem Observer 2013

SOLUTION

  • SOUND
  • Sets
    • 1...f5
      • 2.Se6#
    • 1...f6
      • 2.Se6#
  • Keys
    • 1.Sc6!
      • threat
        • 2.Qb5#
      • 1...Kxc4
        • 2.Qc2#
      • 1...Bxc4
        • 2.Qg1#
      • 1...Rb4
        • 2.Qxb4#
      • 1...Ra5
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • P(e);N_GUARD::S(D)
  • Actual
    • S(C);
    • Threat
      • QAR1(A)
    • Vars
      • K(d);OGATEB,P-FLIGHT,XB(B)::QAR2(A)
      • B(a);OGATE,SBLOCK,XB(B)::QAB(A)
      • R(c);N_GUARD::QAB1(A),XR(c)
      • R(c);N_GUARD::QAB1(A)
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