MESON Chess Problem Database

Problem Display
PID: 41975 (7K/3p4/3B2Qp/p2R4/2k5/np1R2n1/4B1qr/4b1r1 w - - 0 1)

Grabowski, Kazimierz

1st Prize, Haagsche Post, 1921

7K/3p4/3B2Qp/p2R4/2k5/np1R2n1/4B1qr/4b1r1

#2

6 + 11

3360 Simple Two-move Themes 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Bc3+
      • 2.R3d4#
  • Tries
    • 1.Rd2+?
      • 1...Kc3
        • 2.Qd3#
        • 2.Qf6#
        • 2.Qg7#
      • 1...Sxe2
        • 2.Qd3#
      • 1...Qxe2!
  • Keys
    • 1.Qg8!
      • threat
        • 2.Qc8#
      • 1...Bc3+
        • 2.R3d4#
      • 1...Qxd5
        • 2.Qxd5#
      • 1...Qf2
        • 2.Rf5#
      • 1...Bf2
        • 2.Rxg3#
      • 1...Bb4
        • 2.Rc5#
      • 1...Sb5
        • 2.R5d4#
      • 1...Se4
        • 2.Rg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • B(a);CHECK,SBLOCK::B(A)+R(B),DCHECK
  • Tries
    • Try
      • R(B);CHECK
      • Vars
        • S(g);XB(A)::QAB1(E)
      • Refutation
        • Q(c);XB(A)
  • Actual
    • Q(E);
    • Threat
      • QAR(E)
    • Vars
      • B(a);CHECK,SBLOCK::B(A)+R(B),DCHECK
      • Q(c);OGATE,P_SPINQ(c),XR(C)::QAB1(E),XQ(c)
      • Q(c);N_GUARD::QAB(E)+R(C)
      • B(a);S_CUTQ(c)::B(A)+R(B),XS(g)
      • B(a);SBLOCK::QAB(E)+R(C),DCHECK
      • S(e);SBLOCK::QAB(E)+R(C),DCHECK
      • S(g);S_CUTQ(c)::QAB(E)+R(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).