MESON Chess Problem Database

Problem Display
PID: 230150 (4K1B1/2p5/bbp2P2/2k2NN1/2q1p2Q/P2prp2/5r2/1RR2nBn w - - 0 1)

Vakhlakov, Yuri Nikolaevich

Zadachi i Etyudi, 2000

4K1B1/2p5/bbp2P2/2k2NN1/2q1p2Q/P2prp2/5r2/1RR2nBn

#2

10 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Ra2
      • 2.Sxe4#
    • 1...Rd2
      • 2.Sxe4#
    • 1...Rfe2
      • 2.Sxe4#
    • 1...Rg2
      • 2.Sxe4#
    • 1...Rh2
      • 2.Sxe4#
    • 1...Bb7
      • 2.Rxc4#
    • 1...Bc8
      • 2.Rxc4#
  • Keys
    • 1.Qxe4!
      • threat
        • 2.Se6#
      • 1...Rxe4+
        • 2.Sxe4#
      • 1...Rb2
        • 2.Qe5#
      • 1...Rc2
        • 2.Qe7#
      • 1...Bc8
        • 2.Rxc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(c);P_SPINR(e)::S(G),XP(h)
    • B(j);N_GUARD::R1(B),XQ(g)
  • Actual
    • Q(E);P_SPINQ(E),XP(h)
    • Threat
      • S(G)
    • Vars
      • R(e);CHECK,P_SPINR(c),XQ(E)::S(G),XR(e)
      • R(c);P_SPINR(e)::QAR2(E)
      • R(c);N_SPINQ(g),P_SPINR(e)::QAB(E)
      • B(j);N_GUARD::R1(B),XQ(g)
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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).