MESON Chess Problem Database

Problem Display
PID: 90507 (bQ2N3/2pp3r/2P3Rp/K1Nk4/1P2Rb2/3nPq2/1p1r3B/8 w - - 0 1)

Stocchi, Ottavio

Die Schwalbe, 1949

bQ2N3/2pp3r/2P3Rp/K1Nk4/1P2Rb2/3nPq2/1p1r3B/8

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe3
      • 2.Sxc7#
    • 1...Bg5
      • 2.Sxc7#
      • 2.Rd4#
    • 1...Se5
      • 2.Sxc7#
  • Keys
    • 1.Qb5!
      • threat
        • 2.Qc4#
      • 1...Qxe4
        • 2.Sxd3#
      • 1...Rc2
        • 2.Qxd3#
      • 1...Bd6
        • 2.Rd4#
      • 1...Se5
        • 2.Sxc7#
      • 1...d6
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • B(e);N_GUARD,XP(B)::S(J),XP(h)
    • S(c);S_CUTB(e)::S(J),XP(h)
  • Actual
    • Q(I);
    • Threat
      • QAB1(I)
    • Vars
      • Q(d);SBLOCK,XR(D)::QAR(I)+S(F),XS(c)
      • R(b);N_GUARD::QAR2(I),XS(c)
      • B(e);::R1(D)
      • S(c);S_CUTB(e)::S(J),XP(h)
      • P(i);SBLOCK::S(J)
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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).