MESON Chess Problem Database

Problem Display
PID: 201725 (8/5K2/3k4/1P1N4/8/3Q4/3B4/8 w - - 0 1)

Henke, Walter

Dresdner Anzeiger, 1922

8/5K2/3k4/1P1N4/8/3Q4/3B4/8

#2

5 + 1

5454 Near Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Bb4#
    • 1...Ke5
      • 2.Bf4#
  • Tries
    • 1.Kf6?
      • 1...Kc5
        • 2.Bb4#
      • 1...Kd7!
    • 1.Sc3+?
      • 1...Kc5
        • 2.Sa4#
      • 1...Ke5
        • 2.Qd5#
      • 1...Kc7!
    • 1.Sb6+?
      • 1...Kc5
        • 2.Sa4#
        • 2.Sd7#
      • 1...Ke5
        • 2.Sc4#
        • 2.Sd7#
        • 2.Qd5#
      • 1...Kc7!
    • 1.Sf6+?
      • 1...Kc5
        • 2.Sd7#
      • 1...Ke5
        • 2.Sg4#
        • 2.Sd7#
        • 2.Qd5#
      • 1...Kc7!
    • 1.Bc1?
      • 1...Kc5
        • 2.Ba3#
      • 1...Ke5
        • 2.Bf4#
      • 1...Kd7!
    • 1.Be1?
      • 1...Kc5
        • 2.Bb4#
      • 1...Ke5
        • 2.Bg3#
      • 1...Kd7!
    • 1.Bc3?
      • 1...Kc5
        • 2.Bb4#
      • 1...Kd7!
    • 1.Be3?
      • 1...Ke5
        • 2.Bf4#
      • 1...Kd7!
    • 1.Bf4+?
      • 1...Kd7
        • 2.Sb6#
        • 2.Se7#
      • 1...Kc5!
    • 1.Bg5?
      • 1...Kc5
        • 2.Be7#
      • 1...Ke5
        • 2.Bf4#
      • 1...Kd7!
    • 1.Bh6?
      • 1...Kc5
        • 2.Bf8#
      • 1...Ke5
        • 2.Bf4#
      • 1...Kd7!
    • 1.Qc4?
      • 1...Kd7
        • 2.Qc7#
      • 1...Ke5!
    • 1.Qc3?
      • 1...Kd7
        • 2.Qc7#
      • 1...Kxd5!
  • Keys
    • 1.Ba5!
      • 1...Kc5
        • 2.Bb4#
      • 1...Ke5
        • 2.Bc7#
      • 1...Kd7
        • 2.Se7#

This anticipates 76539(1934)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(A)
  • Tries
    • Try
      • K(E);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(a);S_FLIGHT::S(D)
        • K(a);S_FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(a);S_FLIGHT::S(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(A);
      • Vars
        • K(a);S_FLIGHT::B(A)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);P-FLIGHT,XS(D)
  • Actual
    • B(A);
    • Vars
      • K(a);S_FLIGHT::B(A)
      • K(a);P-FLIGHT::QAR(B)+S(D)
HTML5 logo

Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).