MESON Chess Problem Database

Problem Display
PID: 277999 (8/2R5/3pp3/1p1B2K1/1p1kN3/1P4Q1/8/8 w - - 0 1)

Sayman, Umut

Pat a Mat, 2015

8/2R5/3pp3/1p1B2K1/1p1kN3/1P4Q1/8/8

#2

6 + 5

15601 Albrecht-Leiss-Degener Collection 2024

SOLUTION

  • SOUND
  • Tries
    • 1.Kf4?
      • 1...Kxd5
        • 2.Qd3#
      • 1...exd5
        • 2.Qe3#
      • 1...e5+!
    • 1.Sf2?
      • 1...exd5
        • 2.Qf4#
      • 1...e5
        • 2.Qd3#
      • 1...Kxd5!
    • 1.Rc4+?
      • 1...Kxd5
        • 2.Sf6#
        • 2.Qxd6#
      • 1...bxc4!
    • 1.Qc3+?
      • 1...Kxd5
        • 2.Sf6#
      • 1...bxc3!
    • 1.Qe3+?
      • 1...Kxd5
        • 2.Sf6#
      • 1...Ke5
        • 2.Sc3#
        • 2.Sf6#
      • 1...Kxe3!
  • Keys
    • 1.Qf4!
      • 1...Kd3
        • 2.Qd2#
      • 1...Kxd5
        • 2.Sf6#
      • 1...exd5
        • 2.Sf2#
      • 1...e5
        • 2.Qd2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(b);N_GUARD,P-FLIGHT,XB(D)::QAR2(B)
        • P(e);SBLOCK,XB(D)::QAB1(B)
      • Refutation
        • P(e);CHECK
    • Try
      • S(C);
      • Vars
        • P(e);SBLOCK,XB(D)::QAR2(B)
        • P(e);SBLOCK::QAR1(B)
      • Refutation
        • K(b);P-FLIGHT,XB(D)
    • Try
      • R(F);CHECK
      • Refutation
        • P(c);XR(F)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);P-FLIGHT,S_CUTP(a),XB(D)::S(C)
      • Refutation
        • P(a);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(b);N_GUARD,P-FLIGHT,XB(D)::S(C)
      • Refutation
        • K(b);S_FLIGHT,XQ(B)
  • Actual
    • Q(B);
    • Vars
      • K(b);N_GUARD,P-FLIGHT::QAR1(B)
      • K(b);N_GUARD,P-FLIGHT,XB(D)::S(C)
      • P(e);SBLOCK,XB(D)::QAR(B)+S(C)
      • P(e);SBLOCK::QAR2(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).