MESON Chess Problem Database

Problem Display
PID: 45017 (6K1/Q2p4/3B2p1/R1bkP1P1/5P2/3N4/1PB2p2/3R1N2 w - - 0 1)

Laws, Benjamin Glover

Source?, 0000

6K1/Q2p4/3B2p1/R1bkP1P1/5P2/3N4/1PB2p2/3R1N2

#2

12 + 5

3316 Chess Problem Text Book 1887
119 Tidskrift for Schack 1909
14868 Pirnie Collection 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Kc4
      • 2.Qxc5#
    • 1...Kc6
      • 2.Rxc5#
    • 1...Ke6
      • 2.Sxc5#
  • Tries
    • 1.Sc1+?
      • 1...Kc4
        • 2.Qxc5#
      • 1...Kc6
        • 2.Ba4#
        • 2.Be4#
        • 2.Rxc5#
        • 2.Qc7#
      • 1...Ke6!
    • 1.Se1+?
      • 1...Kc4
        • 2.Qxc5#
      • 1...Kc6
        • 2.Ba4#
        • 2.Be4#
        • 2.Rxc5#
        • 2.Qc7#
      • 1...Ke6!
    • 1.Sxf2+?
      • 1...Kc4
        • 2.Qxc5#
      • 1...Kc6
        • 2.Ba4#
        • 2.Be4#
        • 2.Rxc5#
        • 2.Qc7#
      • 1...Ke6!
    • 1.Sb4+?
      • 1...Kc4
        • 2.Qxc5#
      • 1...Ke6!
    • 1.Sxc5+?
      • 1...Kc6
        • 2.Ba4#
        • 2.Be4#
        • 2.Qa6#
        • 2.Qb7#
        • 2.Qc7#
      • 1...Kc4!
    • 1.Bb3+?
      • 1...Kd4
        • 2.Sxf2#
        • 2.Sxc5#
        • 2.Ra4#
      • 1...Kc6
        • 2.Rxc5#
        • 2.Qc7#
      • 1...Ke4!
    • 1.Qa6?
      • threat
        • 2.Sxc5#
      • 1...Kd4
        • 2.Sc1#
        • 2.Se1#
        • 2.Sxf2#
        • 2.Sb4#
        • 2.Sxc5#
      • 1...Ke6
        • 2.Sxc5#
      • 1...Ke4!
  • Keys
    • 1.e6!
      • 1...Kc4
        • 2.Qxc5#
      • 1...Kd4
        • 2.Se5#
      • 1...Ke4
        • 2.Se1#
      • 1...Kc6
        • 2.Se5#
      • 1...Kxd6
        • 2.Qxd7#
      • 1...Kxe6
        • 2.Sxc5#
      • 1...dxe6
        • 2.Se5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINB(b),S_FLIGHT::QAR1(K),XB(b)
    • K(c);N_SPINB(b),S_FLIGHT::R1(G),XB(b)
    • K(c);N_SPINB(b),S_FLIGHT::S(E),XB(b)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);N_SPINB(b),S_FLIGHT::QAR1(K),XB(b)
      • Refutation
        • K(c);N_SPINB(b),S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(c);N_SPINB(b),S_FLIGHT::QAR1(K),XB(b)
      • Refutation
        • K(c);N_SPINB(b),S_FLIGHT
    • Try
      • S(E);CHECK,XP(a)
      • Vars
        • K(c);N_SPINB(b),S_FLIGHT::QAR1(K),XB(b)
      • Refutation
        • K(c);N_SPINB(b),S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(c);N_SPINB(b),S_FLIGHT::QAR1(K),XB(b)
      • Refutation
        • K(c);N_SPINB(b),S_FLIGHT
    • Try
      • S(E);CHECK,XB(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(D);CHECK
      • Refutation
        • K(c);N_SPINB(b),S_FLIGHT
    • Try
      • Q(K);
      • Threat
        • R(A)+S(E),XB(b)
      • Vars
        • K(c);N_SPINB(b),S_FLIGHT::S(E),XB(b)
      • Refutation
        • K(c);N_SPINB(b),S_FLIGHT
  • Actual
    • P(H);
    • Vars
      • K(c);N_SPINB(b),S_FLIGHT::QAR1(K),XB(b)
      • K(c);P-FLIGHT::R(A)+S(E)
      • K(c);N_SPINB(b),S_FLIGHT::B(D)+S(E)
      • K(c);N_SPINB(b),S_FLIGHT::S(E)
      • K(c);N_SPINB(b),OGATEB,P-FLIGHT,XB(J)::QAR1(K),XP(e)
      • K(c);N_SPINB(b),S_FLIGHT,XP(H)::S(E),XB(b)
      • P(e);SBLOCK,XP(H)::R(A)+S(E)
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