MESON Chess Problem Database

Problem Display
PID: 4639 (8/3p4/2pP3N/8/K1Bk1N2/5pQ1/1R4P1/B6R w - - 0 1)

Laws, Benjamin Glover

Mackenzie, Arthur Ford

HM., Chess Monthly, 1884-1886

8/3p4/2pP3N/8/K1Bk1N2/5pQ1/1R4P1/B6R

#2

10 + 4

2794 Terms & Themes of Chess Problems 1907
3360 Simple Two-move Themes 1924
3571 An English Bohemian 1933
133 The Problemist Supplement 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Ke3
      • 2.Re2#
    • 1...Kxc4
      • 2.Rc2#
  • Tries
    • 1.Ra2+?
      • 1...Ke3
        • 2.Re1#
        • 2.Re2#
        • 2.Qxf3#
      • 1...Kxc4
        • 2.Rc1#
        • 2.Rc2#
      • 1...Ke4
        • 2.Re1#
        • 2.Qxf3#
      • 1...Kc5!
    • 1.Rc2+?
      • 1...Ke3
        • 2.Re1#
        • 2.Re2#
        • 2.Qxf3#
      • 1...Ke4
        • 2.Re1#
        • 2.Qxf3#
      • 1...Kc5!
    • 1.Rd2+?
      • 1...Ke3
        • 2.Re2#
      • 1...Kxc4
        • 2.Rc1#
        • 2.Rc2#
      • 1...Ke4
        • 2.Re1#
        • 2.Qxf3#
      • 1...Kc5!
    • 1.Re2+?
      • 1...Kxc4
        • 2.Rc1#
        • 2.Rc2#
      • 1...Kc5!
    • 1.Rf2+?
      • 1...Ke3
        • 2.Re1#
        • 2.Re2#
        • 2.Qxf3#
      • 1...Kxc4
        • 2.Rc1#
        • 2.Rc2#
      • 1...Ke4
        • 2.Re1#
        • 2.Qxf3#
      • 1...Kc5!
    • 1.Rb3+?
      • 1...Kxc4
        • 2.Rc1#
      • 1...Ke4
        • 2.Re1#
        • 2.Qxf3#
        • 2.gxf3#
      • 1...Kc5!
    • 1.Rb4+?
      • 1...Ke4
        • 2.Re1#
        • 2.Qxf3#
      • 1...Kc5
        • 2.Sd3#
      • 1...Ke3!
    • 1.Rb5+?
      • 1...Kxc4
        • 2.Rc1#
        • 2.Qg8#
      • 1...Ke4
        • 2.Re1#
        • 2.Re5#
        • 2.Qxf3#
      • 1...Ke3!
    • 1.Qxf3?
      • 1...Kxc4
        • 2.Rc2#
      • 1...Ke5
        • 2.Rd2#
      • 1...c5
        • 2.Rc2#
        • 2.Rb4#
      • 1...Kc5!
  • Keys
    • 1.Rh4!
      • 1...Kc3
        • 2.Se2#
      • 1...Ke3
        • 2.Re2#
      • 1...Kxc4
        • 2.Rc2#
      • 1...Ke4
        • 2.Sd5#
      • 1...Kc5
        • 2.Sd3#
      • 1...Ke5
        • 2.Sh5#
      • 1...fxg2
        • 2.Se6#
      • 1...f2
        • 2.Se6#
      • 1...c5
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • K(b);P_SPINP(a),S_FLIGHT::R1(C)
    • K(b);P-FLIGHT,XB(G)::R(C)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);P_SPINP(a),S_FLIGHT::R1(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);P-FLIGHT,XB(G)::R(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT::S(H)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • R(C);CHECK
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • Q(E);XP(a)
      • Vars
        • K(b);P-FLIGHT,XB(G)::R(C)
        • K(b);S_FLIGHT::B(A)+R(C)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(B);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::S(H)
      • K(b);P_SPINP(a),S_FLIGHT::R1(C)
      • K(b);P-FLIGHT,XB(G)::R(C)
      • K(b);P-FLIGHT::R(B)+S(H)
      • K(b);S_FLIGHT::S(H)
      • K(b);S_FLIGHT::QAB(E)+S(H)
      • P(a);XP(D)::R(B)+S(H),DCHECK
      • P(a);::R(B)+S(H),DCHECK
      • P(c);SBLOCK::R(B)+S(H)
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