MESON Chess Problem Database

Problem Display
PID: 600 (3Q4/1BNn4/p2K4/k7/n7/R7/1BP5/8 w - - 0 1)

Baird, Edith Elina Helen (Mrs WJ)

British Chess Magazine, 1904

3Q4/1BNn4/p2K4/k7/n7/R7/1BP5/8

#2

7 + 4

2794 Terms & Themes of Chess Problems 1907

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Bc3#
  • Tries
    • 1.Sd5+?
      • 1...Sb6
        • 2.Qxb6#
      • 1...Kb5!
    • 1.Qxd7?
      • 1...Kb4
        • 2.Rxa4#
        • 2.Qxa4#
      • 1...Kb6!
  • Keys
    • 1.Bc6!
      • 1...Kb4
        • 2.Rxa4#
      • 1...Kb6
        • 2.Sb5#
      • 1...Sc5
        • 2.Sd5#
      • 1...Se5
        • 2.Sd5#
      • 1...Sb6
        • 2.Bc3#
      • 1...Sf6
        • 2.Sd5#
      • 1...Sb8
        • 2.Sd5#
      • 1...Sf8
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • S(d);SBLOCK::B(A)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • S(d);N_GUARD::QAB1(G),XS(d)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT
    • Try
      • Q(G);XS(d)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
  • Actual
    • B(E);
    • Vars
      • K(b);N_SPINS(a),S_FLIGHT::R1(C),XS(a)
      • K(b);N_SPINS(a),S_FLIGHT::QAB(G)+S(F)
      • S(d);N_GUARD::QAB(G)+S(F)
      • S(d);SBLOCK::B(A)
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