MESON Chess Problem Database

Problem Display
PID: 216214 (B6Q/8/6R1/6P1/1p4p1/1P3qR1/7n/K6k w - - 0 1)

Finch, James Gayler

1st Prize, Burnley Express, 1881

B6Q/8/6R1/6P1/1p4p1/1P3qR1/7n/K6k

#2

7 + 5

1253 Leeds Mercury Weekly Supplement 1881
15239 Valois Notebooks 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qe4
      • 2.Bxe4#
    • 1...Qd5
      • 2.Bxd5#
    • 1...Qc6
      • 2.Bxc6#
    • 1...Qb7
      • 2.Bxb7#
  • Tries
    • 1.Rd6?
      • threat
        • 2.Rd1#
      • 1...Qd5
        • 2.Bxd5#
      • 1...Qxa8+!
    • 1.Re6?
      • threat
        • 2.Re1#
      • 1...Qe4
        • 2.Bxe4#
      • 1...Qxa8+!
    • 1.Rf6?
      • 1...Qg2
        • 2.Rf1#
      • 1...Qe4
        • 2.Bxe4#
        • 2.Rf1#
      • 1...Qd5
        • 2.Bxd5#
        • 2.Rf1#
      • 1...Qc6
        • 2.Bxc6#
        • 2.Rf1#
      • 1...Qb7
        • 2.Bxb7#
        • 2.Rf1#
      • 1...Qxa8+!
    • 1.Rh6?
      • threat
        • 2.Rxh2#
      • 1...Qxa8+
        • 2.Qxa8#
      • 1...Qg2!
    • 1.Qd4?
      • threat
        • 2.Rg1#
        • 2.Qg1#
      • 1...Sf1
        • 2.Qg1#
      • 1...Qg2
        • 2.Bxg2#
      • 1...Qxa8+!
  • Keys
    • 1.Rc6!
      • threat
        • 2.Rc1#
      • 1...Qc3+
        • 2.Rcxc3#
      • 1...Qf6+
        • 2.Rxf6#
      • 1...Qxc6
        • 2.Bxc6#

There are these versions: 44770

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 3
  • Sets
    • Q(c);OGATEB::B(F),XQ(c)
  • Tries
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • Q(c);OGATEB::B(F),XQ(c)
      • Refutation
        • Q(c);CHECK,N_SPINQ(c),XB(F)
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • Q(c);OGATEB::B(F),XQ(c)
      • Refutation
        • Q(c);CHECK,N_SPINQ(c),XB(F)
    • Try
      • R(E);
      • Vars
        • Q(c);OGATE::R(E)
      • Refutation
        • Q(c);CHECK,N_SPINQ(c),XB(F)
    • Try
      • R(E);
      • Threat
        • R1(E),XS(b)
      • Vars
        • Q(c);CHECK,N_SPINQ(c),OGATE,XB(F)::QAB(G),XQ(c)
      • Refutation
        • Q(c);
    • Try
      • Q(G);N_PINS(b)
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::QAR1(G)
        • Q(c);OGATE::B(F),XQ(c)
      • Refutation
        • Q(c);CHECK,N_SPINQ(c),XB(F)
  • Actual
    • R(E);N_PINQ(c)
    • Threat
      • R(E)
    • Vars
      • Q(c);CHECK,OGATEB::B(F)+R(E),XQ(c)
      • Q(c);OGATE,P_SPINQ(c),XR(E)::B(F),XQ(c)
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