MESON Chess Problem Database

Problem Display
PID: 162218 (3N4/NppQ1PpK/1p1P3B/1nkb1p2/1p3R2/1B3Pr1/2qPPn2/2Rr4 w - - 0 1)

Mosiashvili, Givi

The Problemist, 2015

3N4/NppQ1PpK/1p1P3B/1nkb1p2/1p3R2/1B3Pr1/2qPPn2/2Rr4

#2

13 + 13

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf3
      • 2.Se6#
    • 1...Be4
      • 2.Se6#
    • 1...Bc6
      • 2.Se6#
    • 1...Be6
      • 2.Sxe6#
      • 2.Sxb7#
    • 1...Bxf7
      • 2.Sxb7#
    • 1...cxd6
      • 2.Qxb5#
    • 1...c6
      • 2.Sxb7#
  • Tries
    • 1.Qxf5?
      • threat
        • 2.Sxb7#
      • 1...Kxd6
        • 2.f8Q#
        • 2.f8B#
      • 1...Sxd6
        • 2.Se6#
      • 1...Se4
        • 2.Qxd5#
      • 1...Sxa7!
    • 1.Qc6+?
      • 1...bxc6
        • 2.Sb7#
      • 1...Bxc6!
    • 1.Qxc7+?
      • 1...Bc6
        • 2.Se6#
        • 2.Sxb7#
      • 1...Sxc7!
  • Keys
    • 1.Rxf5!
      • threat
        • 2.Se6#
      • 1...Kd4
        • 2.Be3#
      • 1...Rg6
        • 2.Rxd5#
      • 1...Sd4
        • 2.Sxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • B(h);N_GUARD,XP(E)::S(M)
    • B(h);N_GUARD::S(M)
    • B(h);N_GUARD,XP(K)::S(M),XP(k)
    • P(l);SBLOCK,XP(G)::QAR1(J),XS(f)
    • P(l);S_CUTB(h)::S(M),XP(k)
  • Tries
    • Try
      • Q(J);P_PINB(h),P_SPINQ(J),XP(i)
      • Threat
        • S(M),XP(k)
      • Vars
        • K(g);N_SPINB(h),N_SPINQ(b),S_FLIGHT,XP(G)::P=Q
        • S(f);SBLOCK,XP(G)::S(M)
        • S(c);N_PINQ(J)::QAR1(J),XB(h)
      • Refutation
        • S(f);XS(I)
    • Try
      • Q(J);CHECK
      • Vars
        • P(k);XQ(J)::S(M)
      • Refutation
        • B(h);XQ(J)
    • Try
      • Q(J);CHECK,XP(l)
      • Refutation
        • S(f);XQ(J)
  • Actual
    • R(F);P_PINB(h),P_SPINR(F),XP(i)
    • Threat
      • S(M)
    • Vars
      • K(g);N_SPINB(h),N_SPINQ(b),S_FLIGHT::B(H)
      • R(d);N_PINR(F)::R1(F),XB(h)
      • S(f);SBLOCK::S(M),XP(k)
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).