MESON Chess Problem Database

Problem Display
PID: 53833 (8/1B5b/K1N2Qq1/3pp3/2P1k1N1/2P1P3/2P4n/5nB1 w - - 0 1)

Clark, Cecil Henry Douglas

Chess, 1943

8/1B5b/K1N2Qq1/3pp3/2P1k1N1/2P1P3/2P4n/5nB1

#2

10 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sxe3
      • 2.Sf2#
    • 1...dxc4
      • 2.Sb4#
      • 2.Sd4#
      • 2.Sa5#
      • 2.Scxe5#
      • 2.Sa7#
      • 2.Se7#
      • 2.Sb8#
      • 2.Sd8#
    • 1...d4
      • 2.Sb4#
      • 2.Sxd4#
      • 2.Sa5#
      • 2.Scxe5#
      • 2.Sa7#
      • 2.Se7#
      • 2.Sb8#
      • 2.Sd8#
  • Keys
    • 1.Sd4!
      • threat
        • 2.Bxd5#
      • 1...Qxf6+
        • 2.Sxf6#
      • 1...Sxe3
        • 2.Sf2#
      • 1...Qf7
        • 2.Qxe5#
      • 1...Qg8
        • 2.Qxe5#
      • 1...Bg8
        • 2.Qxg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(a);SBLOCK,XP(D)::S(F)
  • Actual
    • S(H);P_PINP(d),P_SPINQ(I)
    • Threat
      • B(J),XP(d)
    • Vars
      • Q(f);CHECK,XQ(I)::S(F),XQ(f)
      • S(a);SBLOCK,XP(D)::S(F)
      • Q(f);N_PINQ(I)::QAR1(I),XP(e)
      • B(g);N_GUARD::QAB(I),XQ(f)
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