MESON Chess Problem Database

Problem Display
PID: 120633 (7n/pP5r/k2p3p/p1PB4/pp4p1/r2b1QK1/2P5/8 w - - 0 1)

Krivohlavek, Josef

Kotva, 1963

7n/pP5r/k2p3p/p1PB4/pp4p1/r2b1QK1/2P5/8

#2

6 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qxd3#
    • 1...Ra2
      • 2.Qxd3#
    • 1...Bxc2
      • 2.Bc4#
    • 1...Bc4
      • 2.Bxc4#
    • 1...Bb5
      • 2.b8S#
    • 1...Bf5
      • 2.Bc4#
    • 1...Bg6
      • 2.Bc4#
    • 1...b3
      • 2.Qxd3#
  • Keys
    • 1.c4!
      • threat
        • 2.b8S#
      • 1...Rxb7
        • 2.Bxb7#
      • 1...Bxc4
        • 2.Bxc4#
      • 1...dxc5
        • 2.Qf6#
      • 1...bxc4 ep
        • 2.Qxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::QAB(B),XB(b)
    • B(b);N_GUARD,P_PINQ(B),XP(A)::B(E)
    • B(b);N_GUARD,P_PINQ(B)::B(E),XB(b)
    • B(b);P_PINQ(B),SBLOCK::P=S
    • B(b);N_GUARD,P_PINQ(B)::B(E)
    • P(d);S_CUTR(a)::QAB(B),XB(b)
  • Actual
    • P(A);
    • Threat
      • P=S
    • Vars
      • R(k);OGATE,XP(F)::B(E),XR(k)
      • B(b);OGATE,P_PINQ(B),XP(A)::B(E),XB(b)
      • P(h);OGATEB,XP(D)::QAR(B)
      • P(d);EP,OGATEB,XP(A)::QAB(B),XB(b)
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).