MESON Chess Problem Database

Problem Display
PID: 221657 (5N2/B2K4/8/3k1nnR/2p5/3r3p/8/b2QRN2 w - - 0 1)

McDowell, Michael

The Problemist, 1987

5N2/B2K4/8/3k1nnR/2p5/3r3p/8/b2QRN2

#2

7 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...c3
      • 2.Qb3#
  • Keys
    • 1.Sg6!
      • threat
        • 2.Sf4#
      • 1...Se3
        • 2.Qf3#
      • 1...c3
        • 2.Qb3#
      • 1...Be5
        • 2.Rxe5#
      • 1...Se4
        • 2.Se3#
      • 1...Se6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(d);OGATEB::QAB(A)
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • S(f);P_SPINS(g)::QAB(A)
      • P(d);OGATEB::QAB(A)
      • B(a);N_GUARD::R1(B),XB(a)
      • S(g);P_SPINS(f),SBLOCK::S(C)
      • S(g);P_SPINS(f)::S(G)
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