MESON Chess Problem Database

Problem Display
PID: 137091 (qb1Q2N1/8/p5nN/2pPk1n1/4p1P1/K1p1P3/1R6/Bb3r2 w - - 0 1)

Mosiashvili, Givi

StrateGems, 2010

qb1Q2N1/8/p5nN/2pPk1n1/4p1P1/K1p1P3/1R6/Bb3r2

#2

9 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sf3
      • 2.Sf7#
    • 1...cxb2
      • 2.Bxb2#
    • 1...c2
      • 2.Rxb1#
      • 2.Ra2#
      • 2.Rxc2#
      • 2.Rb3#
      • 2.Rb4#
      • 2.Rb5#
      • 2.Rb6#
      • 2.Rb7#
      • 2.Rxb8#
  • Tries
    • 1.Rd2?
      • threat
        • 2.Bxc3#
      • 1...Qxd5
        • 2.Qxd5#
      • 1...Rc1
        • 2.Qf6#
      • 1...Sf3
        • 2.Sf7#
        • 2.Qf6#
      • 1...Se6!
    • 1.Rb6?
      • threat
        • 2.Bxc3#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Rc1
        • 2.Qxg5#
      • 1...Rd1
        • 2.Qxg5#
      • 1...Sf3
        • 2.Sf7#
        • 2.Re6#
      • 1...Se6
        • 2.Rxe6#
      • 1...Qxd5!
  • Keys
    • 1.Rf2!
      • threat
        • 2.Bxc3#
      • 1...Qxd5
        • 2.Qf6#
      • 1...Bd6
        • 2.Qxg5#
      • 1...Rc1
        • 2.Rf5#
      • 1...Rd1
        • 2.Rf5#
      • 1...Sf3
        • 2.Sf7#
      • 1...Se6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • S(g);N_GUARD,S_CUTR(b)::S(G)
    • P(c);OGATE,P_SPINP(c),XR(B)::B(A),XP(c)
  • Tries
    • Try
      • R(B);P_PINP(c)
      • Threat
        • B(A),XP(c)
      • Vars
        • Q(j);OGATE,XP(F)::QAR1(H),XQ(j)
        • R(b);N_GUARD::QAB1(H)
      • Refutation
        • S(g);
    • Try
      • R(B);P_PINP(c)
      • Threat
        • B(A),XP(c)
      • Vars
        • B(k);N_GUARD::QAB1(H),XB(k)
        • R(b);N_GUARD::QAR2(H),XS(g)
        • S(g);N_GUARD::R1(B),XS(g)
      • Refutation
        • Q(j);XP(F)
  • Actual
    • R(B);P_PINP(c)
    • Threat
      • B(A),XP(c)
    • Vars
      • Q(j);SBLOCK,XP(F)::QAB1(H)
      • B(k);SBLOCK::QAR2(H),XS(g)
      • R(b);N_GUARD::R1(B)
      • S(g);N_GUARD::S(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).