MESON Chess Problem Database

Problem Display
PID: 47803 (8/8/QB6/1rPBb2K/1kp5/pn2Nn2/q1PrN3/7b w - - 0 1)

Hartong, Jan

3rd HM., Themes-64, 1957

8/8/QB6/1rPBb2K/1kp5/pn2Nn2/q1PrN3/7b

#2

8 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rd4
      • 2.c3#
    • 1...Rxd5
      • 2.Sxd5#
    • 1...Ra5
      • 2.Qxc4#
    • 1...Bh2
      • 2.c3#
    • 1...Bg3
      • 2.c3#
    • 1...Bf4
      • 2.c3#
    • 1...Bd6
      • 2.c3#
    • 1...Bc7
      • 2.c3#
    • 1...Bb8
      • 2.c3#
    • 1...Sd4
      • 2.c3#
  • Keys
    • 1.Bc6!
      • threat
        • 2.Qxb5#
      • 1...Rxe2
        • 2.Sd5#
      • 1...Rxc5
        • 2.Qa4#
      • 1...Rxb6
        • 2.Qxb6#
      • 1...Ra5
        • 2.Qxc4#
      • 1...Sbd4
        • 2.Sd5#
      • 1...Sfd4
        • 2.c3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • R(c);S_CUTB(j)::P(A)
    • R(c);XB(E)::S(C),XR(c)
    • R(i);OGATE::QAR1(G),XP(h)
    • B(j);N_GUARD::P(A)
    • S(f);S_CUTB(j)::P(A)
  • Actual
    • B(E);
    • Threat
      • QAR1(G),XR(i)
    • Vars
      • R(c);N_GUARD,XS(B)::S(C)
      • R(i);XP(D)::QAR1(G)
      • R(i);OGATE,XB(H)::QAR2(G),XR(i)
      • R(i);OGATE::QAR1(G),XP(h)
      • S(e);S_CUTR(c)::S(C)
      • S(f);S_CUTB(j)::P(A)
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).