MESON Chess Problem Database

Problem Display
PID: 90210 (8/5K2/5p2/6p1/6k1/4Q1N1/8/4B3 w - - 0 1)

Zimmer, Eligiusz

Die Schwalbe, 2000

8/5K2/5p2/6p1/6k1/4Q1N1/8/4B3

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Se2?
      • 1...Kf5
        • 2.Qe6#
      • 1...Kh5
        • 2.Qh3#
      • 1...f5!
    • 1.Se4?
      • 1...Kh5
        • 2.Qh3#
      • 1...f5
        • 2.Sf6#
      • 1...Kf5!
    • 1.Sf5?
      • 1...Kh5
        • 2.Qh3#
      • 1...Kxf5!
    • 1.Qd4+?
      • 1...Kf3
        • 2.Qe4#
      • 1...Kh3!
    • 1.Qe2+?
      • 1...Kf4
        • 2.Qe4#
      • 1...Kh4
        • 2.Qh5#
      • 1...Kh3!
    • 1.Qf3+?
      • 1...Kh3
        • 2.Sf1#
      • 1...Kh4
        • 2.Sf1#
        • 2.Sh1#
        • 2.Se2#
        • 2.Se4#
        • 2.Sf5#
        • 2.Sh5#
        • 2.Qh5#
      • 1...Kxf3!
  • Keys
    • 1.Sh5!
      • 1...Kf5
        • 2.Qe6#
      • 1...Kxh5
        • 2.Qh3#
      • 1...f5
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);S_FLIGHT::QAR2(B)
      • Refutation
        • P(c);
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
        • P(c);SBLOCK::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR2(B)
      • Refutation
        • K(a);S_FLIGHT,XS(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::QAR1(B)
        • K(a);OGATE,P-FLIGHT::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);S_FLIGHT::QAR(B)+S(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
  • Actual
    • S(C);
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT,XS(C)::QAR2(B)
      • P(c);SBLOCK::S(C)
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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).