MESON Chess Problem Database

Problem Display
PID: 35052 (8/4R3/1K3p2/1B2P3/1B1k1rnQ/2N2p2/3rp3/5N1b w - - 0 1)

Seider, Shlomo

Israel Ring Ty., 1960

8/4R3/1K3p2/1B2P3/1B1k1rnQ/2N2p2/3rp3/5N1b

#2

8 + 8

3674 As in all Arts 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Sf2
      • 2.Qxf2#
    • 1...Sh2
      • 2.Qf2#
      • 2.Qxf4#
    • 1...Se3
      • 2.Qxf4#
    • 1...Sxe5
      • 2.Qf2#
      • 2.Qxf4#
    • 1...Sh6
      • 2.Qf2#
      • 2.Qxf4#
    • 1...fxe5
      • 2.Rd7#
  • Tries
    • 1.Qf2+?
      • 1...Se3
        • 2.Qxe3#
      • 1...Sxf2!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qxd2#
      • 1...Sxe5
        • 2.Qf2#
      • 1...exf1Q
        • 2.Rd7#
      • 1...exf1S
        • 2.Rd7#
      • 1...exf1B
        • 2.Rd7#
      • 1...Rd1
        • 2.Bc5#
      • 1...Ra2
        • 2.Bc5#
      • 1...Rb2
        • 2.Bc5#
      • 1...Rc2
        • 2.Bc5#
      • 1...Rd3
        • 2.Bc5#
      • 1...Sf2
        • 2.Qxf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 2
  • Sets
    • S(g);N_GUARD,P_SPINR(f)::QAB(D),XS(g)
    • S(g);OGATE,P_SPINR(f)::QAR2(D),XR(f)
    • P(h);SBLOCK,XP(F)::R(H)
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • S(g);N_GUARD,P_SPINS(g)::QAB1(D),XS(g)
      • Refutation
        • S(g);XQ(D)
  • Actual
    • Q(D);
    • Threat
      • QAR2(D),XR(b)
    • Vars
      • S(g);N_GUARD,XP(F)::QAB(D)
      • P(c);XS(A)::R(H)
      • R(b);::B(C)
      • S(g);N_GUARD::QAB(D),XS(g)
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).