MESON Chess Problem Database

Problem Display
PID: 153384 (1R6/2K4N/8/4kp2/3n4/5P2/Q7/B7 w - - 0 1)

Neill, Benjamin Milnes

Good Companions (January Meredith Ty.), 1916

1R6/2K4N/8/4kp2/3n4/5P2/Q7/B7

#2

6 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...f4
      • 2.Rb5#
  • Tries
    • 1.Kd7?
      • 1...f4
        • 2.Rb5#
        • 2.Qe6#
        • 2.Qa5#
      • 1...Kf4!
    • 1.Bb2?
      • 1...f4
        • 2.Rb5#
      • 1...Kf4!
    • 1.Bc3?
      • 1...f4
        • 2.Rb5#
      • 1...Kf4!
    • 1.Rb1?
      • 1...f4
        • 2.Rb5#
      • 1...Kf4!
    • 1.Rb4?
      • 1...f4
        • 2.Rb5#
      • 1...Kf4!
    • 1.Rb6?
      • 1...f4
        • 2.Rb5#
        • 2.Qe6#
        • 2.Qa5#
      • 1...Kf4!
    • 1.Rb7?
      • 1...f4
        • 2.Rb5#
      • 1...Kf4!
    • 1.Ra8?
      • 1...f4
        • 2.Ra5#
      • 1...Kf4!
    • 1.Rd8?
      • 1...f4
        • 2.Qd5#
      • 1...Kf4!
    • 1.Rg8?
      • 1...f4
        • 2.Rg5#
      • 1...Kf4!
    • 1.Qb3?
      • 1...f4
        • 2.Rb5#
      • 1...Kf4!
    • 1.Qc4?
      • 1...f4
        • 2.Rb5#
      • 1...Kf4!
    • 1.Qf7?
      • 1...f4
        • 2.Rb5#
        • 2.Re8#
      • 1...Kf4!
    • 1.Qg8?
      • 1...f4
        • 2.Rb5#
      • 1...Kf4!
  • Keys
    • 1.Rb3!
      • 1...Kf4
        • 2.Qh2#
      • 1...Kd5
        • 2.Rb5#
      • 1...Ke6
        • 2.Re3#
      • 1...f4
        • 2.Rb5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::R(F)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • B(A);
      • Vars
        • P(c);SBLOCK::R(F)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • B(A);
      • Vars
        • P(c);SBLOCK::R(F)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • R(F);
      • Vars
        • P(c);SBLOCK::R(F)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • R(F);
      • Vars
        • P(c);SBLOCK::R(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(F);
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • R(F);
      • Vars
        • P(c);SBLOCK::R(F)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • R(F);
      • Vars
        • P(c);SBLOCK::R(F)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • R(F);
      • Vars
        • P(c);SBLOCK::QAR1(B)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • R(F);
      • Vars
        • P(c);OGATEB,SBLOCK::R(F)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(c);SBLOCK::R(F)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(c);SBLOCK::R(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(B);
      • Refutation
        • K(b);N_SPINS(a),P_SPINP(c),S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • P(c);SBLOCK::R(F)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(b);N_SPINS(a),S_FLIGHT::QAB(B)
      • K(b);N_SPINS(a),P-FLIGHT::QAB(B)+R(F),DCHECK
      • P(c);SBLOCK::R(F)
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