MESON Chess Problem Database

Problem Display
PID: 16620 (8/p1K5/3p3B/2R5/rQq3k1/3R1N1p/3p3p/4bN1B w - - 0 1)

Sheppard, Charles William

American Chess Bulletin, 1942

8/p1K5/3p3B/2R5/rQq3k1/3R1N1p/3p3p/4bN1B

#2

8 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Rxd4#
    • 1...Qf4
      • 2.Rg5#
    • 1...Ra1
      • 2.Qxc4#
    • 1...Ra2
      • 2.Qxc4#
    • 1...Ra3
      • 2.Qxc4#
    • 1...Ra5
      • 2.Qxc4#
    • 1...Ra6
      • 2.Qxc4#
    • 1...Bg3
      • 2.Se3#
    • 1...Bh4
      • 2.S3xh2#
  • Keys
    • 1.Rxd6!
      • threat
        • 2.Rg6#
      • 1...Qf4
        • 2.Rg5#
      • 1...Ra6
        • 2.Qxc4#
      • 1...Bg3
        • 2.Se3#
      • 1...Bh4
        • 2.S3xh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • Q(f);N_GUARD,N_PINR(F)::R(C),XQ(f)
    • Q(f);N_PINR(F)::R1(F)
    • R(e);N_GUARD::QAR(E),XQ(f)
    • B(a);SBLOCK::S(A)
    • B(a);SBLOCK::S(D),XP(c)
  • Actual
    • R(C);XP(h)
    • Threat
      • R(C)
    • Vars
      • Q(f);N_PINR(F),P_PINR(C)::R1(F)
      • R(e);N_GUARD::QAR(E),XQ(f)
      • B(a);SBLOCK::S(A)
      • B(a);SBLOCK::S(D),XP(c)
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