MESON Chess Problem Database

Problem Display
PID: 230710 (8/K7/2pRp2Q/3p4/1N1k4/3P4/8/1N3B2 w - - 0 1)

Slater, George James

Leeds Mercury Weekly Supplement, 1883

(First published on Sat Jan 27 1883)

8/K7/2pRp2Q/3p4/1N1k4/3P4/8/1N3B2

#2

7 + 4

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...c5
      • 2.Sc6#
      • 2.Qf4#
  • Tries
    • 1.Kb6?
      • threat
        • 2.Sxc6#
        • 2.Qf4#
      • 1...c5
        • 2.Sc6#
        • 2.Qf4#
      • 1...e5
        • 2.Sc2#
        • 2.Sxc6#
      • 1...Ke5!
    • 1.Rxc6?
      • threat
        • 2.Qf4#
      • 1...e5
        • 2.Sc2#
      • 1...Ke5!
    • 1.Qc1?
      • threat
        • 2.Sxc6#
      • 1...c5
        • 2.Sc6#
        • 2.Qf4#
      • 1...Ke5!
    • 1.Qg5?
      • 1...c5
        • 2.Sc2#
        • 2.Sc6#
        • 2.Qf4#
      • 1...e5
        • 2.Qg1#
      • 1...Kc5!
    • 1.Qxe6?
      • 1...c5
        • 2.Sc2#
        • 2.Sc6#
        • 2.Rxd5#
        • 2.Qe4#
      • 1...Kc5!
    • 1.Qf6+?
      • 1...Ke3
        • 2.Sc2#
        • 2.Rxe6#
      • 1...e5
        • 2.Qf2#
      • 1...Kc5!
  • Keys
    • 1.Qf8!
      • 1...Ke3
        • 2.Sc2#
      • 1...Kc5
        • 2.Rxd5#
      • 1...Ke5
        • 2.Sxc6#
      • 1...c5
        • 2.Qf4#
      • 1...e5
        • 2.Qf2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • R(E);N_PINP(b),XP(c)
      • Threat
        • QAR2(F)
      • Vars
        • P(d);SBLOCK::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);
      • Threat
        • S(D),XP(c)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • Q(F);
      • Vars
        • P(d);SBLOCK::QAB(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(F);XP(d)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • P(d);SBLOCK::QAB(F)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(a);N_SPINP(b),S_FLIGHT::S(D)
      • K(a);N_SPINP(b),S_FLIGHT::QAB(F)+R(E),DCHECK,XP(b)
      • K(a);N_SPINP(b),S_FLIGHT::S(D),XP(c)
      • P(c);SBLOCK::QAR2(F)
      • P(d);SBLOCK::QAB(F)
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