MESON Chess Problem Database

Problem Display
PID: 223277 (8/B7/1r6/Rn6/1kN5/1B6/8/K2Q4 w - - 0 1)

Billington, Thomas Henry

English Mechanic and World of Science, 1886

(First published on Fri Dec 10 1886)

8/B7/1r6/Rn6/1kN5/1B6/8/K2Q4

#2

6 + 3

6490 yacpdb 2020
15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qd6#
  • Keys
    • 1.Ba2!
      • 1...Kc3
        • 2.Qd2#
      • 1...Kc5
        • 2.Qd6#
      • 1...Sxa7
        • 2.Qb3#
        • 2.Qe1#
        • 2.Qd2#
      • 1...Ra6
        • 2.Qb3#
      • 1...Rc6
        • 2.Qb3#
      • 1...Rd6
        • 2.Qb3#
      • 1...Re6
        • 2.Qb3#
      • 1...Rf6
        • 2.Qb3#
      • 1...Rg6
        • 2.Qb3#
      • 1...Rh6
        • 2.Qb3#
      • 1...Rb7
        • 2.Qb3#
      • 1...Rb8
        • 2.Qb3#
      • 1...Sa3
        • 2.Qb3#
        • 2.Qe1#
        • 2.Qd2#
      • 1...Sc3
        • 2.Qb3#
      • 1...Sd4
        • 2.Qe1#
        • 2.Qd2#
      • 1...Sd6
        • 2.Qb3#
        • 2.Qe1#
        • 2.Qd2#
      • 1...Sc7
        • 2.Qb3#
        • 2.Qe1#
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • K(a);P_SPINR(c),P_SPINS(b),S_FLIGHT::QAB1(B)
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);P_SPINR(c),P_SPINS(b),S_FLIGHT::QAB1(B)
      • R(c);::QAR1(B)
      • S(b);::QAR1(B)
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