MESON Chess Problem Database

Problem Display
PID: 252729 (4Q3/4B3/8/8/pp6/Pk1K4/8/8 w - - 0 1)

Langberg, Carl

Schackvarlden, 1939

4Q3/4B3/8/8/pp6/Pk1K4/8/8

#3

4 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kxa3
      • 2.Kc2
        • 2...Ka2
          • 3.Qxa4#
  • Tries
    • 1.Qh8?
      • threat
        • 2.Qa1
          • 2...bxa3
            • 3.Qb1#
            • 3.Qxa3#
      • 1...Kxa3
        • 2.Kc2
          • 2...Ka2
            • 3.Qb2#
      • 1...bxa3
        • 2.Qa1
          • 2...a2
            • 3.Qc3#
        • 2.Qh2
          • 2...a2
            • 3.Qb8#
            • 3.Qc2#
      • 1...Ka2!
  • Keys
    • 1.Bf6!
      • 1...Ka2
        • 2.Qe2+
          • 2...Kb1
            • 3.Qb2#
            • 3.Qc2#
          • 2...Kxa3
            • 3.Qb2#
          • 2...Kb3
            • 3.Qb2#
      • 1...Kxa3
        • 2.Qe2
          • threat
            • 3.Qb2#
          • 2...Kb3
            • 3.Qb2#
          • 2...b3
            • 3.Be7#
      • 1...bxa3
        • 2.Qc6
          • threat
            • 3.Qc4#
          • 2...Ka2
            • 3.Qc2#
          • 2...Kb4
            • 3.Qb6#
          • 2...a2
            • 3.Qc3#
        • 2.Qe6+
          • 2...Kb4
            • 3.Qb6#

FEATURES

NOT CLASSIFIED
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).