MESON Chess Problem Database

Problem Display
PID: 224239 (8/3p4/2pp4/6p1/3k2K1/1Q1N1P2/8/2B5 w - - 0 1)

Ros, Johan August

Aftonbladet, 1888

8/3p4/2pp4/6p1/3k2K1/1Q1N1P2/8/2B5

#2

5 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Se1?
      • 1...Kc5
        • 2.Be3#
      • 1...Ke5
        • 2.Bb2#
      • 1...c5
        • 2.Bb2#
      • 1...d5!
    • 1.Sf2?
      • 1...Kc5
        • 2.Be3#
      • 1...Ke5
        • 2.Bb2#
      • 1...c5
        • 2.Bb2#
      • 1...d5!
    • 1.Sc5?
      • 1...Kxc5
        • 2.Be3#
      • 1...Ke5
        • 2.Bb2#
      • 1...dxc5
        • 2.Bb2#
      • 1...d5!
    • 1.Bd2?
      • 1...d5
        • 2.Qc3#
      • 1...c5!
    • 1.Qb4+?
      • 1...Kd5
        • 2.Qe4#
      • 1...Kxd3!
  • Keys
    • 1.Se5!
      • 1...Kc5
        • 2.Be3#
      • 1...Kxe5
        • 2.Bb2#
      • 1...dxe5
        • 2.Be3#
      • 1...c5
        • 2.Bb2#
      • 1...d5
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::B(A)
        • P(c);SBLOCK::B(A)
      • Refutation
        • P(d);
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::B(A)
        • P(c);SBLOCK::B(A)
      • Refutation
        • P(d);
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT,XS(C)::B(A)
        • K(a);S_FLIGHT::B(A)
        • P(d);SBLOCK,XS(C)::B(A)
      • Refutation
        • P(d);
    • Try
      • B(A);
      • Vars
        • P(d);SBLOCK::QAB1(B)
      • Refutation
        • P(c);
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAB1(B)
      • Refutation
        • K(a);P-FLIGHT,XS(C)
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT::B(A)
      • K(a);S_FLIGHT,XS(C)::B(A)
      • P(d);SBLOCK,XS(C)::B(A)
      • P(c);SBLOCK::B(A)
      • P(d);SBLOCK::QAB1(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).