MESON Chess Problem Database

Problem Display
PID: 92271 (3B4/8/3K4/1p1P1p2/1N1k1N2/P2P2P1/P5P1/3R4 w - - 0 1)

Boder, W

Schach-Echo, 1956

3B4/8/3K4/1p1P1p2/1N1k1N2/P2P2P1/P5P1/3R4

#2

11 + 3

6490 yacpdb 2009
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Bf6#
    • 1...Ke3
      • 2.Bb6#
  • Tries
    • 1.Kc6?
      • 1...Kc3
        • 2.Bf6#
      • 1...Ke3
        • 2.Bb6#
      • 1...Ke5!
    • 1.Ke6?
      • 1...Kc3
        • 2.Bf6#
      • 1...Ke3
        • 2.Bb6#
      • 1...Kc5!
    • 1.Kc7?
      • 1...Kc3
        • 2.Bf6#
      • 1...Kc5
        • 2.Se6#
      • 1...Ke5
        • 2.Sc6#
      • 1...Ke3!
    • 1.Ke7?
      • 1...Ke3
        • 2.Bb6#
      • 1...Kc5
        • 2.Se6#
      • 1...Ke5
        • 2.Sc6#
      • 1...Kc3!
    • 1.Sc6+?
      • 1...Ke3
        • 2.Bb6#
      • 1...Kc3!
    • 1.Se6+?
      • 1...Kc3
        • 2.Bf6#
      • 1...Ke3!
    • 1.Bh4?
      • 1...Kc3
        • 2.Bf6#
      • 1...Ke3!
    • 1.Ba5?
      • threat
        • 2.Sc2#
      • 1...Ke3
        • 2.Bb6#
      • 1...Kc3!
    • 1.Bg5?
      • threat
        • 2.Se2#
      • 1...Kc3
        • 2.Bf6#
      • 1...Ke3!
    • 1.Bc7?
      • 1...Ke3
        • 2.Bb6#
      • 1...Kc3!
    • 1.Be7?
      • 1...Kc3
        • 2.Bf6#
      • 1...Ke3!
  • Keys
    • 1.Kd7!
      • 1...Kc3
        • 2.Bf6#
      • 1...Ke3
        • 2.Bb6#
      • 1...Kc5
        • 2.Se6#
      • 1...Ke5
        • 2.Sc6#

This anticipates 234833(2007)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(K)
  • Tries
    • Try
      • K(J);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(K)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(J);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(K)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(J);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(K)
        • K(a);S_FLIGHT::S(H)
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(J);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(K)
        • K(a);S_FLIGHT::S(H)
        • K(a);S_FLIGHT::S(G)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(G);CHECK
      • Vars
        • K(a);S_FLIGHT::B(K)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(H);CHECK
      • Vars
        • K(a);S_FLIGHT::B(K)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(K);
      • Vars
        • K(a);S_FLIGHT::B(K)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(K);
      • Threat
        • S(G)
      • Vars
        • K(a);S_FLIGHT::B(K)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(K);
      • Threat
        • S(H)
      • Vars
        • K(a);S_FLIGHT::B(K)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(K);
      • Vars
        • K(a);S_FLIGHT::B(K)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(K);
      • Vars
        • K(a);S_FLIGHT::B(K)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • K(J);P-FLIGHT
    • Vars
      • K(a);S_FLIGHT::B(K)
      • K(a);S_FLIGHT::S(H)
      • K(a);S_FLIGHT::S(G)
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).