MESON Chess Problem Database

Problem Display
PID: 81306 (7Q/KpPrbnp1/3P4/1R3P2/R2PkPr1/2p1p3/B1p1P2B/8 w - - 0 1)

Pituk, Alexander

2nd HM., Moment, 2000

7Q/KpPrbnp1/3P4/1R3P2/R2PkPr1/2p1p3/B1p1P2B/8

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Se5
      • 2.Rxe5#
    • 1...Sg5
      • 2.Re5#
    • 1...Sxd6
      • 2.Re5#
    • 1...Sh6
      • 2.Re5#
    • 1...Sd8
      • 2.Re5#
    • 1...Sxh8
      • 2.Re5#
    • 1...b6
      • 2.Qa8#
  • Tries
    • 1.Qc8?
      • threat
        • 2.Qxb7#
      • 1...Rxd6
        • 2.d5#
      • 1...Rxc7
        • 2.Bd5#
      • 1...Sxd6
        • 2.Re5#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sd8
        • 2.Re5#
      • 1...b6
        • 2.Qb7#
        • 2.Qa8#
      • 1...Rg3!
  • Keys
    • 1.Qh3!
      • threat
        • 2.Qf3#
      • 1...Rxf4
        • 2.Bd5#
      • 1...Rg3
        • 2.d5#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sg5
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • S(i);N_GUARD::R1(G),XS(i)
    • S(i);N_GUARD::R1(G)
    • S(i);N_GUARD,XP(I)::R1(G)
    • S(i);N_GUARD,XQ(L)::R1(G)
    • P(f);OGATEB,P_PINP(K)::QAB(L)
  • Tries
    • Try
      • Q(L);
      • Threat
        • QAB(L),XP(f)
      • Vars
        • R(g);XP(I)::R(D)+P(E)
        • R(g);XP(K)::B(A)
        • S(i);N_GUARD,XP(I)::R1(G)
        • S(i);N_GUARD::R1(G),XS(i)
        • S(i);N_GUARD::R1(G)
      • Refutation
        • R(e);
  • Actual
    • Q(L);
    • Threat
      • QAB1(L)
    • Vars
      • R(e);XP(F)::B(A)
      • R(e);::R(D)+P(E)
      • S(i);N_GUARD::R1(G),XS(i)
      • S(i);N_GUARD::R1(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).