MESON Chess Problem Database

Problem Display
PID: 196976 (8/r2B4/p2p1K2/8/4k3/Q2p2P1/4p2P/6B1 w - - 0 1)

Kuehne, H

Deutsche Schachzeitung, 1919

8/r2B4/p2p1K2/8/4k3/Q2p2P1/4p2P/6B1

#2

6 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.Qxd3#
  • Tries
    • 1.Qb4+?
      • 1...Kd5
        • 2.Qd4#
      • 1...Kf3!
    • 1.Qa4+?
      • 1...Kd5
        • 2.Bc6#
        • 2.Be6#
        • 2.Qc6#
        • 2.Qd4#
      • 1...Kf3!
    • 1.Qa5?
      • threat
        • 2.Qf5#
      • 1...Kf3
        • 2.Qd5#
      • 1...d5!
  • Keys
    • 1.Qc5!
      • threat
        • 2.Qf5#
      • 1...Kf3
        • 2.Qd5#
      • 1...dxc5
        • 2.Bc6#
      • 1...d5
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(c);S_FLIGHT::QAR2(C),XP(b)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(c);S_FLIGHT::QAR1(C)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAB1(C)
      • Vars
        • K(c);S_FLIGHT::QAB(C)
      • Refutation
        • P(e);
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(c);S_FLIGHT::QAB(C)
      • P(e);N_GUARD,XQ(C)::B(F)
      • P(e);SBLOCK::QAR1(C)
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).