MESON Chess Problem Database

Problem Display
PID: 180346 (6R1/B7/B4p2/1pr5/Pb3P1Q/p3P2p/Kp1P2Np/1R3Nkr w - - 0 1)

Lider, Valentin Viktorovich

Europe Echecs, 1991

6R1/B7/B4p2/1pr5/Pb3P1Q/p3P2p/Kp1P2Np/1R3Nkr

#2

12 + 10

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sxh2+?
      • 1...Kxh2
        • 2.Qg3#
      • 1...Rc1!
    • 1.Qg3?
      • threat
        • 2.Sh4#
      • 1...hxg2
        • 2.Qxg2#
      • 1...Rg5
        • 2.Sxh2#
      • 1...Rc1!
  • Keys
    • 1.e4!
      • 1...Bxd2
        • 2.Sxd2#
      • 1...hxg2
        • 2.Sxh2#
      • 1...bxa4
        • 2.Se1#
      • 1...Bc3
        • 2.Sfe3#
      • 1...Ba5
        • 2.Bxc5#
      • 1...f5
        • 2.Sge3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK,XP(d)
      • Vars
        • K(a);P_SPINP(f),S_FLIGHT,XS(B)::QAB1(I)
      • Refutation
        • R(i);P_SPINR(i)
    • Try
      • Q(I);
      • Threat
        • QAR(I)+S(E)
      • Vars
        • P(f);OGATE,P_SPINP(f),XS(E)::QAR1(I),XP(f)
        • R(i);N_GUARD::R(A)+S(B),XP(d)
      • Refutation
        • R(i);
  • Actual
    • P(F);P_PINR(i)
    • Vars
      • B(g);XP(D)::R(A)+S(B),XB(g)
      • P(f);P_SPINP(f),XS(E)::R(A)+S(B),XP(d)
      • P(h);XP(G)::R(L)+S(E)
      • B(g);::R(A)+S(B)
      • B(g);N_GUARD::B(K),XR(i)
      • P(j);::R(L)+S(E)
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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).