MESON Chess Problem Database

Problem Display
PID: 258511 (8/4B3/8/3N2K1/8/8/1p1k1p2/1B1n1Q2 w - - 0 1)

Waterhouse, Albert F

English Mechanic and World of Science, 1893

(First published on Fri Jun 30 1893)

8/4B3/8/3N2K1/8/8/1p1k1p2/1B1n1Q2

#2

5 + 4

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Se3
      • 2.Bb4#
  • Tries
    • 1.Kh4?
      • 1...Sc3
        • 2.Bg5#
      • 1...Se3
        • 2.Bb4#
      • 1...Kc1!
    • 1.Kh5?
      • 1...Sc3
        • 2.Bg5#
      • 1...Se3
        • 2.Bb4#
      • 1...Kc1!
    • 1.Kg6?
      • 1...Sc3
        • 2.Bg5#
      • 1...Se3
        • 2.Bb4#
      • 1...Kc1!
    • 1.Kh6?
      • 1...Sc3
        • 2.Bg5#
      • 1...Se3
        • 2.Bb4#
      • 1...Kc1!
    • 1.Sc3?
      • 1...Kc1
        • 2.Qxd1#
      • 1...Kxc3
        • 2.Qd3#
      • 1...Ke3
        • 2.Qd3#
      • 1...Se3
        • 2.Se4#
      • 1...Sxc3!
    • 1.Sb6?
      • 1...Kc3
        • 2.Qd3#
      • 1...Ke3
        • 2.Qd3#
      • 1...Sc3
        • 2.Sc4#
      • 1...Se3
        • 2.Bb4#
      • 1...Kc1!
    • 1.Bb4+?
      • 1...Sc3
        • 2.Bxc3#
      • 1...Kc1!
    • 1.Bc5?
      • 1...Sc3
        • 2.Be3#
      • 1...Se3
        • 2.Bxe3#
        • 2.Bb4#
      • 1...Kc1!
    • 1.Bd6?
      • 1...Sc3
        • 2.Bf4#
      • 1...Se3
        • 2.Bb4#
      • 1...Kc1!
    • 1.Bf6?
      • 1...Sc3
        • 2.Bxc3#
      • 1...Se3
        • 2.Bc3#
      • 1...Kc1!
    • 1.Qe2+?
      • 1...Kc1
        • 2.Qc2#
      • 1...Kxe2!
    • 1.Qd3+?
      • 1...Kc1
        • 2.Qc2#
      • 1...Ke1!
    • 1.Qxf2+?
      • 1...Kc1
        • 2.Qc2#
      • 1...Sxf2!
  • Keys
    • 1.Se3!
      • 1...Kc1
        • 2.Qxd1#
      • 1...Kc3
        • 2.Qd3#
      • 1...Kxe3
        • 2.Qd3#
      • 1...Sxe3
        • 2.Bb4#
      • 1...Sc3
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::B(E)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Vars
        • S(a);N_GUARD::B(E)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • S(a);N_GUARD::B(E)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • K(D);P-FLIGHT
      • Vars
        • S(a);N_GUARD::B(E)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • K(D);S_FLIGHT
      • Vars
        • S(a);N_GUARD::B(E)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(c);N_GUARD,P_SPINS(a),S_FLIGHT::QAR1(B),XS(a)
        • K(c);N_GUARD,S_FLIGHT,XS(C)::QAR1(B)
        • K(c);N_GUARD,S_FLIGHT::QAR1(B)
        • S(a);SBLOCK::S(C)
      • Refutation
        • S(a);XS(C)
    • Try
      • S(C);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAR1(B)
        • S(a);SBLOCK::S(C)
        • S(a);N_GUARD,SBLOCK::B(E)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • B(E);CHECK
      • Vars
        • S(a);N_GUARD,P_SPINS(a)::B(E),XS(a)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • B(E);
      • Vars
        • S(a);N_GUARD::B(E)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • B(E);
      • Vars
        • S(a);N_GUARD::B(E)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • B(E);
      • Vars
        • S(a);N_GUARD::B(E),XS(a)
        • S(a);N_GUARD::B(E)
      • Refutation
        • K(c);P_SPINS(a),S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • K(c);P-FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);N_GUARD,S_FLIGHT::QAR1(B)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(B);CHECK,XP(d)
      • Vars
        • K(c);OGATE,S_FLIGHT::QAR1(B)
      • Refutation
        • S(a);XQ(B)
  • Actual
    • S(C);
    • Vars
      • K(c);N_GUARD,P_SPINS(a),S_FLIGHT::QAR1(B),XS(a)
      • K(c);N_GUARD,S_FLIGHT::QAR1(B)
      • K(c);N_GUARD,S_FLIGHT,XS(C)::QAR1(B)
      • S(a);N_GUARD,SBLOCK,XS(C)::B(E)
      • S(a);SBLOCK::S(C)
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