Problem Display
PID: 249572 (8/5K2/2P5/6Pk/Q2p3p/3P3p/3BP2P/8 w - - 0 1)

Matthaus, Hans Georg

Deutsche Schachzeitung, 1981

8/5K2/2P5/6Pk/Q2p3p/3P3p/3BP2P/8

#2

8 + 4


6490 yacpdb 2021

SOLUTION


  • SOUND
  • Tries
    • 1.e4?
      • threat
        • 2.Qd1#
      • 1...Kg4
        • 2.Qd1#
      • 1...dxe4 ep!
  • Keys
    • 1.Qd1!
      • 1...Kg4
        • 2.e4#

FEATURES


  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • P(B);
      • Threat
        • QAB(E)
      • Vars
        • K(d);S_FLIGHT::QAB(E)
      • Refutation
        • P(b);EP,XP(B)
  • Actual
    • Q(E);
    • Vars
      • K(d);S_FLIGHT::QAB(E)+P(B)


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).