MESON Chess Problem Database

Problem Display
PID: 120056 (1n6/8/B7/p5P1/k1p1K3/3N4/3N4/2B1b2Q w - - 0 1)

Smutny, Jan

Delnicke listy, 1911

1n6/8/B7/p5P1/k1p1K3/3N4/3N4/2B1b2Q

#2

7 + 5

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bxd2
      • 2.Qd1#
    • 1...Bf2
      • 2.Qd1#
    • 1...Bg3
      • 2.Qd1#
    • 1...Bh4
      • 2.Qd1#
  • Tries
    • 1.Qh8?
      • threat
        • 2.Qa1#
      • 1...Sxa6
        • 2.Qe8#
      • 1...cxd3
        • 2.Qd4#
      • 1...c3
        • 2.Qd4#
      • 1...Bxd2!
  • Keys
    • 1.Kf5!
      • 1...Bxd2
        • 2.Qd1#
      • 1...Sxa6
        • 2.Qc6#
      • 1...cxd3
        • 2.Qe4#
      • 1...Bf2
        • 2.Qd1#
      • 1...Bg3
        • 2.Qd1#
      • 1...Bh4
        • 2.Qd1#
      • 1...Sc6
        • 2.Qxc6#
      • 1...Sd7
        • 2.Qc6#
      • 1...c3
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • B(a);OGATE,XS(C)::QAB(B)
    • B(a);OGATE::QAB(B)
    • B(a);OGATE,SBLOCK::QAB(B)
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAR(B)
      • Vars
        • S(e);N_GUARD,XB(G)::QAB(B)
        • P(c);OGATEB,XS(D)::QAR(B)
        • P(c);OGATEB::QAR(B)
      • Refutation
        • B(a);XS(C)
  • Actual
    • K(E);S_FLIGHT
    • Vars
      • B(a);OGATE,XS(C)::QAB(B)
      • S(e);N_GUARD,XB(G)::QAB(B)
      • P(c);OGATEB,XS(D)::QAR(B)
      • B(a);OGATE::QAB(B)
      • B(a);OGATE,SBLOCK::QAB(B)
      • S(e);N_GUARD::QAB(B),XS(e)
      • S(e);N_GUARD::QAB(B)
      • P(c);OGATEB::QAR(B)
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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).