MESON Chess Problem Database

Problem Display
PID: 109063 (4R3/1p2B3/1p6/1Kp1k3/2PN3P/Q3P2P/3P4/8 w - - 0 1)

Neill, Benjamin Milnes

Dubuque Chess Journal, 1877

4R3/1p2B3/1p6/1Kp1k3/2PN3P/Q3P2P/3P4/8

#2

10 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Bxc5#
      • 2.Bg5#
      • 2.Bd6#
      • 2.Bf6#
      • 2.Bd8#
      • 2.Bf8#
  • Tries
    • 1.Kxb6?
      • 1...Ke4
        • 2.Bxc5#
        • 2.Bg5#
        • 2.Bd6#
        • 2.Bf6#
        • 2.Bd8#
        • 2.Bf8#
      • 1...cxd4!
    • 1.Qxc5+?
      • 1...Ke4
        • 2.Qf5#
      • 1...bxc5!
    • 1.Qb3?
      • 1...Ke4
        • 2.Bxc5#
        • 2.Bg5#
        • 2.Bd6#
        • 2.Bf6#
        • 2.Bd8#
        • 2.Bf8#
      • 1...cxd4!
    • 1.Qc3?
      • 1...Ke4
        • 2.Bxc5#
        • 2.Bg5#
        • 2.Bd6#
        • 2.Bf6#
        • 2.Bd8#
        • 2.Bf8#
      • 1...cxd4!
    • 1.h5?
      • 1...Ke4
        • 2.Bh4#
        • 2.Bxc5#
        • 2.Bg5#
        • 2.Bd6#
        • 2.Bf6#
        • 2.Bd8#
        • 2.Bf8#
      • 1...cxd4!
  • Keys
    • 1.e4!
      • 1...Kxd4
        • 2.Bf6#
      • 1...Kxe4
        • 2.Qe3#
      • 1...Kf4
        • 2.Bg5#
        • 2.Bd6#
      • 1...cxd4
        • 2.Bg5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(H);P-FLIGHT,XP(c)
      • Refutation
        • P(a);XS(F)
    • Try
      • Q(B);CHECK,XP(a)
      • Vars
        • K(b);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • P(c);XQ(B)
    • Try
      • Q(B);
      • Refutation
        • P(a);XS(F)
    • Try
      • Q(B);
      • Refutation
        • P(a);P_SPINP(a),XS(F)
    • Try
      • P(G);
      • Refutation
        • P(a);XS(F)
  • Actual
    • P(C);
    • Vars
      • K(b);S_FLIGHT,XS(F)::B(I)
      • K(b);OGATEB,P-FLIGHT,XP(C)::QAR1(B)
      • P(a);SBLOCK,XS(F)::R(J)+B(I)
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