MESON Chess Problem Database

Problem Display
PID: 168999 (2r5/n3b3/R5b1/1N1kp3/1Ppp4/1B6/2rNR3/3Q2K1 w - - 0 1)

Shpakovsky, Aleksandr Nikolaevich

SuperProblem, 2017

2r5/n3b3/R5b1/1N1kp3/1Ppp4/1B6/2rNR3/3Q2K1

#2

8 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Rc7
      • 2.Sxc7#
    • 1...Ra8
      • 2.Sc7#
    • 1...Rb8
      • 2.Sc7#
    • 1...Rd8
      • 2.Sc7#
    • 1...Re8
      • 2.Sc7#
    • 1...Rf8
      • 2.Sc7#
    • 1...Rg8
      • 2.Sc7#
    • 1...Rh8
      • 2.Sc7#
    • 1...Bh4
      • 2.Rd6#
    • 1...Bg5
      • 2.Rd6#
    • 1...Bd6
      • 2.Rxd6#
    • 1...Bf6
      • 2.Rd6#
    • 1...Bd8
      • 2.Rd6#
  • Keys
    • 1.Sxc4!
      • threat
        • 2.Rxe5#
      • 1...Rxe2
        • 2.Sc3#
      • 1...R2xc4
        • 2.Sc3#
      • 1...R8xc4
        • 2.Sc7#
      • 1...Bd6
        • 2.Rxd6#
      • 1...Sc6
        • 2.Sb6#
      • 1...Be4
        • 2.Se3#
      • 1...Bf6
        • 2.Rd6#
      • 1...e4
        • 2.Qxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 11
  • Sets
    • R(i);N_GUARD::S(G),XR(i)
    • R(i);N_GUARD::S(G)
    • B(h);N_GUARD::R1(H)
    • B(h);N_GUARD::R1(H),XB(h)
  • Actual
    • S(C);P_PINP(c),XP(b)
    • Threat
      • R1(D),XP(e)
    • Vars
      • R(a);N_GUARD,XR(D)::S(G)
      • R(a);N_GUARD,P_SPINR(a),XS(C)::S(G)
      • R(i);N_GUARD,P_SPINR(i),XS(C)::S(G)
      • B(h);N_GUARD::R1(H),XB(h)
      • S(g);SBLOCK::B(E)+S(C),DCHECK
      • B(f);SBLOCK::B(E)+S(C),DCHECK
      • B(h);N_GUARD::R1(H)
      • P(e);N_GUARD::QAR1(A),XP(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).