MESON Chess Problem Database

Problem Display
PID: 205515 (8/8/8/b2K4/8/R6B/p3k3/2Q5 w - - 0 1)

Bauer, Robert

Dresdner Anzeiger, 1925

8/8/8/b2K4/8/R6B/p3k3/2Q5

#2

4 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf2
      • 2.Qe3#
      • 2.Qf1#
    • 1...Bd2
      • 2.Qf1#
  • Tries
    • 1.Qd1+?
      • 1...Kf2
        • 2.Rf3#
        • 2.Qf1#
      • 1...Kxd1!
    • 1.Qc2+?
      • 1...Ke1
        • 2.Re3#
      • 1...Bd2!
  • Keys
    • 1.Rd3!
      • threat
        • 2.Qe3#
        • 2.Qf1#
      • 1...Kf2
        • 2.Qe3#
        • 2.Qf1#
      • 1...Kxd3
        • 2.Bf1#
      • 1...a1Q
        • 2.Qe3#
      • 1...a1R
        • 2.Qe3#
      • 1...Be1
        • 2.Qe3#
      • 1...Bd2
        • 2.Qxd2#
        • 2.Qf1#
      • 1...Bb6
        • 2.Qd2#
        • 2.Qf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(c);SBLOCK::QAB1(A)
  • Tries
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);S_FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);P-FLIGHT::R(B)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • R(B);
    • Threat
      • DUALS(2)
    • Vars
      • K(b);S_FLIGHT,XR(B)::B(C)
      • P(a);::QAR1(A)
      • B(c);SBLOCK::QAR1(A)
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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).