MESON Chess Problem Database

Problem Display
PID: 143305 (3K1Qn1/B1ppp3/3k2p1/Np4N1/1p2P1P1/1Pn5/4p1r1/4R2B w - - 0 1)

Wainwright, Joseph CJ

Brentano's Chess Monthly, 1881

3K1Qn1/B1ppp3/3k2p1/Np4N1/1p2P1P1/1Pn5/4p1r1/4R2B

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Qxe7#
    • 1...Sh6
      • 2.Qxe7#
    • 1...c5
      • 2.Bb8#
  • Tries
    • 1.Qf5?
      • threat
        • 2.Sf7#
        • 2.Bc5#
        • 2.Qc5#
      • 1...Sxe4
        • 2.Sxe4#
        • 2.Sf7#
      • 1...Sa4
        • 2.Sf7#
        • 2.Qd5#
      • 1...Sd5
        • 2.Sf7#
        • 2.Qxd5#
        • 2.e5#
      • 1...Sh6
        • 2.Bc5#
        • 2.Qc5#
      • 1...c5
        • 2.Sf7#
        • 2.Bxc5#
        • 2.Bb8#
        • 2.Qxc5#
      • 1...e5
        • 2.Sf7#
        • 2.Qxd7#
      • 1...gxf5!
  • Keys
    • 1.Qg7!
      • 1...Rxg4
        • 2.e5#
      • 1...Sxe4
        • 2.Qd4#
      • 1...Sf6
        • 2.Qxe7#
      • 1...Rg1
        • 2.e5#
      • 1...Rf2
        • 2.e5#
      • 1...Rh2
        • 2.e5#
      • 1...Rg3
        • 2.e5#
      • 1...Sb1
        • 2.Qd4#
      • 1...Sd1
        • 2.Qd4#
      • 1...Sa2
        • 2.Qd4#
      • 1...Sa4
        • 2.Qd4#
      • 1...Sd5
        • 2.e5#
      • 1...Sh6
        • 2.Qxe7#
      • 1...c5
        • 2.Bb8#
      • 1...c6
        • 2.Sb7#
      • 1...e5
        • 2.Qxd7#
      • 1...e6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 14
    • REMOVED MATES = 0
  • Sets
    • S(k);N_GUARD::QAB1(J),XP(j)
    • P(h);OGATEB,SBLOCK::B(H)
  • Tries
    • Try
      • Q(J);N_PINP(j)
      • Threat
        • DUALS(3)
      • Refutation
        • P(g);XQ(J)
  • Actual
    • Q(J);N_PINP(j)
    • Vars
      • R(b);XP(E)::P(D)
      • S(c);N_GUARD,XP(D)::QAR2(J)
      • S(k);N_GUARD::QAB1(J),XP(j)
      • R(b);::P(D)
      • S(c);N_GUARD::QAR2(J)
      • S(c);SBLOCK::P(D)
      • P(h);OGATEB,SBLOCK::B(H)
      • P(h);SBLOCK::S(F)
      • P(j);OGATE,SBLOCK::QAR1(J),XP(i)
      • P(j);SBLOCK::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).