MESON Chess Problem Database

Problem Display
PID: 231719 (6K1/8/4p3/R1n1kB2/1N4P1/4N3/2P3P1/2B1RQ2 w - - 0 1)

Finch, James Gayler

English Mechanic and World of Science, 1880

(First published on Fri Jan 16 1880)

6K1/8/4p3/R1n1kB2/1N4P1/4N3/2P3P1/2B1RQ2

#2

11 + 3

15239 Valois Notebooks 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Bb2#
  • Tries
    • 1.Kf7?
      • 1...Kd4
        • 2.Bb2#
      • 1...exf5
        • 2.Sxf5#
      • 1...Kd6!
    • 1.Kg7?
      • 1...Kd4
        • 2.Bb2#
      • 1...exf5
        • 2.Sxf5#
      • 1...Kd6!
    • 1.Sc4+?
      • 1...Kd4
        • 2.Bb2#
      • 1...Kf6!
    • 1.Bd3?
      • 1...Kd4
        • 2.Bb2#
      • 1...Kd6!
    • 1.Bg6?
      • 1...Kd4
        • 2.Bb2#
      • 1...Kd6!
    • 1.Bh7?
      • 1...Kd4
        • 2.Bb2#
      • 1...Kd6!
    • 1.Rd1?
      • threat
        • 2.Bb2#
      • 1...exf5
        • 2.Qxf5#
      • 1...Kf6!
    • 1.Qf4+?
      • 1...Kxf4
        • 2.Sf1#
      • 1...Kf6!
    • 1.g5?
      • 1...Kd4
        • 2.Bb2#
      • 1...exf5
        • 2.Sxf5#
      • 1...Kd6!
  • Keys
    • 1.Qa6!
      • 1...Kd4
        • 2.Bb2#
      • 1...Kf4
        • 2.Sf1#
      • 1...Kf6
        • 2.Sed5#
      • 1...exf5
        • 2.Sxf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINS(a),S_FLIGHT::B(A)
  • Tries
    • Try
      • K(K);S_FLIGHT
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::B(A)
        • P(c);XB(J)::R(B)+S(F),XP(c)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • K(K);P-FLIGHT
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::B(A)
        • P(c);XB(J)::R(B)+S(F),XP(c)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • S(F);CHECK
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::B(A)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • B(J);
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::B(A)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • B(J);
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::B(A)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • B(J);
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::B(A)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • R(B);
      • Threat
        • B(A)
      • Vars
        • P(c);OGATE,XB(J)::QAR1(C),XP(c)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT,XQ(C)::B(A)+S(F)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • P(H);
      • Vars
        • K(b);N_SPINS(a),S_FLIGHT::B(A)
        • P(c);XB(J)::R(B)+S(F),XP(c)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(b);N_SPINS(a),S_FLIGHT::B(A)
      • K(b);N_SPINS(a),S_FLIGHT::B(A)+S(F)
      • K(b);N_SPINS(a),P_SPINP(c),S_FLIGHT::S(F)
      • P(c);XB(J)::R(B)+S(F),XP(c)
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