MESON Chess Problem Database

Problem Display
PID: 2342 (2R5/8/3k1K2/2p2Pp1/B3Pb1p/6Nq/8/B7 w - - 0 1)

Gardner, John Carey

Source?, 0000

2R5/8/3k1K2/2p2Pp1/B3Pb1p/6Nq/8/B7

#2

7 + 6

1679 American Chess Nuts 1868

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf5+
      • 2.Sxf5#
    • 1...Bc1
      • 2.Be5#
    • 1...Bd2
      • 2.Be5#
    • 1...Be3
      • 2.Be5#
    • 1...Be5+
      • 2.Bxe5#
  • Tries
    • 1.Bd4?
      • threat
        • 2.Bxc5#
      • 1...Qxf5+
        • 2.Sxf5#
      • 1...Be5+
        • 2.Bxe5#
      • 1...Be3
        • 2.Be5#
      • 1...c4
        • 2.Bc5#
      • 1...cxd4!
  • Keys
    • 1.Be8!
      • threat
        • 2.Rc6#
      • 1...Qxf5+
        • 2.Sxf5#
      • 1...Be5+
        • 2.Bxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • Q(a);CHECK,XP(E)::S(B),XQ(a)
    • B(b);N_GUARD::B(A)
    • B(b);CHECK,N_GUARD::B(A),XB(b)
  • Tries
    • Try
      • B(A);
      • Threat
        • B(A),XP(d)
      • Vars
        • Q(a);CHECK,XP(E)::S(B),XQ(a)
        • B(b);CHECK,N_GUARD::B(A),XB(b)
        • B(b);N_GUARD::B(A)
        • P(d);::B(A)
      • Refutation
        • P(d);XB(A)
  • Actual
    • B(C);
    • Threat
      • R1(G)
    • Vars
      • Q(a);CHECK,XP(E)::S(B),XQ(a)
      • B(b);CHECK,N_GUARD::B(A),XB(b)
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