MESON Chess Problem Database

Problem Display
PID: 145456 (5N2/B2p2n1/7N/3pk2n/1Q2p2P/3P2p1/6p1/4R1K1 w - - 0 1)

Locock, Charles Dealtry

American Chess Monthly, 1892

(First published on Sun Jun 26 1892)

5N2/B2p2n1/7N/3pk2n/1Q2p2P/3P2p1/6p1/4R1K1

#2

8 + 8

14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.Bd4#
    • 1...Sf4
      • 2.Bd4#
  • Tries
    • 1.Sg6+?
      • 1...Ke6
        • 2.Qe7#
      • 1...Kf6!
    • 1.Rxe4+?
      • 1...Kf6
        • 2.Bd4#
        • 2.Qe7#
        • 2.Qd4#
      • 1...dxe4!
    • 1.Qe7+?
      • 1...Se6
        • 2.Sg6#
      • 1...Kf4!
  • Keys
    • 1.Be3!
      • 1...Kf6
        • 2.Bd4#
      • 1...exd3
        • 2.Bg5#
      • 1...d4
        • 2.Qxd4#
      • 1...Sf4
        • 2.Bd4#
      • 1...Sf6
        • 2.d4#
      • 1...Sf5
        • 2.Sg4#
      • 1...Se6
        • 2.Sxd7#
      • 1...Se8
        • 2.Qe7#
      • 1...d6
        • 2.Qd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(e);N_SPINP(c),S_FLIGHT::B(G)
    • S(f);SBLOCK::B(G)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(e);P-FLIGHT::QAR1(D)
      • Refutation
        • K(e);N_SPINP(c),S_FLIGHT
    • Try
      • R(A);CHECK,XP(c)
      • Refutation
        • P(d);XR(A)
    • Try
      • Q(D);CHECK
      • Vars
        • S(h);P_SPINS(h)::S(H)
      • Refutation
        • K(e);N_SPINP(c),S_FLIGHT
  • Actual
    • B(G);N_PINP(c)
    • Vars
      • K(e);S_FLIGHT::B(G)
      • P(c);OGATEB,XP(C)::R(A)+B(G)
      • P(d);::QAB1(D),XP(d)
      • S(f);SBLOCK::B(G)
      • S(f);SBLOCK::P(C)
      • S(h);SBLOCK::S(F)
      • S(h);SBLOCK::S(H),XP(g)
      • S(h);N_GUARD::QAR2(D)
      • P(g);SBLOCK::QAB1(D)
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