MESON Chess Problem Database

Problem Display
PID: 76539 (8/5B2/5Q2/8/5N2/5k1p/5P1K/8 w - - 0 1)

Cafferata, Louis William

The Tablet, 1934

(First published on Sat Oct 20 1934)

8/5B2/5Q2/8/5N2/5k1p/5P1K/8

#2

5 + 2

15239 Valois Notebooks 2014
5454 Near Snap 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke4
      • 2.Bd5#
    • 1...Kg4
      • 2.Bh5#
  • Tries
    • 1.Kg1?
      • 1...Ke4
        • 2.Bd5#
      • 1...Kg4
        • 2.Bh5#
      • 1...h2+!
    • 1.Kxh3?
      • 1...Ke4
        • 2.Bd5#
      • 1...Kxf2!
    • 1.Sd3+?
      • 1...Ke4
        • 2.Sc5#
      • 1...Kg4
        • 2.Se5#
        • 2.Qf4#
        • 2.f3#
      • 1...Ke2!
    • 1.Se6+?
      • 1...Ke4
        • 2.Sc5#
      • 1...Kg4
        • 2.Qf4#
        • 2.f3#
      • 1...Ke2!
    • 1.Bb3?
      • 1...Ke4
        • 2.Bd5#
      • 1...Kg4
        • 2.Bd1#
      • 1...Kxf2!
    • 1.Bd5+?
      • 1...Kg4
        • 2.f3#
      • 1...Kxf2!
    • 1.Bh5+?
      • 1...Kxf2
        • 2.Sg2#
      • 1...Ke4!
    • 1.Be6?
      • 1...Ke4
        • 2.Bd5#
      • 1...Kxf2!
    • 1.Bg6?
      • 1...Kg4
        • 2.Bh5#
      • 1...Kxf2!
    • 1.Be8?
      • 1...Ke4
        • 2.Bc6#
      • 1...Kg4
        • 2.Bh5#
      • 1...Kxf2!
    • 1.Qe5?
      • 1...Kxf2
        • 2.Qe2#
      • 1...Kg4!
    • 1.Qe6?
      • 1...Kxf2
        • 2.Qe2#
      • 1...Kxf4!
  • Keys
    • 1.Bc4!
      • 1...Kxf2
        • 2.Sg2#
      • 1...Ke4
        • 2.Bd5#
      • 1...Kg4
        • 2.Be2#

Anticipated by 201725(1922)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(E)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • P(b);CHECK
    • Try
      • K(B);P-FLIGHT,XP(b)
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XP(A)
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);CHECK
      • Vars
        • K(a);S_FLIGHT::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XP(A)
    • Try
      • B(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::P(A)
      • Refutation
        • K(a);P-FLIGHT,XP(A)
    • Try
      • B(E);CHECK
      • Vars
        • K(a);P-FLIGHT,XP(A)::QAR(D)+S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XP(A)
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XP(A)
    • Try
      • B(E);
      • Vars
        • K(a);S_FLIGHT::B(E)
      • Refutation
        • K(a);P-FLIGHT,XP(A)
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT,XP(A)::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);
      • Vars
        • K(a);P-FLIGHT,XP(A)::QAR1(D)
      • Refutation
        • K(a);P-FLIGHT,XS(C)
  • Actual
    • B(E);
    • Vars
      • K(a);P-FLIGHT,XP(A)::QAR(D)+S(C)
      • K(a);S_FLIGHT::B(E)
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