MESON Chess Problem Database

Problem Display
PID: 260890 (8/1N6/6K1/N2k1p2/8/1pP3b1/4Q1b1/4n3 w - - 0 1)

Fomichev, Evgeny Vasilevich

Comm., Neue Zurcher Zeitung, 2014

8/1N6/6K1/N2k1p2/8/1pP3b1/4Q1b1/4n3

#2

5 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Qc4#
  • Tries
    • 1.Kxf5?
      • threat
        • 2.Qc4#
        • 2.Qb5#
        • 2.Qe6#
      • 1...Be4+
        • 2.Qxe4#
      • 1...Bf1
        • 2.Qe4#
        • 2.Qe6#
      • 1...Bf2
        • 2.Qc4#
        • 2.Qe5#
        • 2.Qe6#
      • 1...Be5
        • 2.Qc4#
        • 2.Qb5#
        • 2.Qxe5#
      • 1...Bd6
        • 2.Qc4#
        • 2.Qe6#
      • 1...Sd3
        • 2.Qxd3#
        • 2.Qxg2#
        • 2.Qe6#
      • 1...Bh3+!
    • 1.Kf6?
      • threat
        • 2.Qc4#
        • 2.Qe6#
      • 1...Be5+
        • 2.Qxe5#
      • 1...Bf1
        • 2.Qe6#
      • 1...Be4
        • 2.Qc4#
        • 2.Qb5#
      • 1...Sd3
        • 2.Qxd3#
        • 2.Qxg2#
        • 2.Qe6#
      • 1...Bh4+!
  • Keys
    • 1.Kf7!
      • threat
        • 2.Qe6#
      • 1...Be4
        • 2.Qb5#
      • 1...Be5
        • 2.Qc4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(d);SBLOCK::QAB1(A)
  • Tries
    • Try
      • K(D);S_FLIGHT,XP(f)
      • Threat
        • DUALS(3)
      • Vars
        • B(b);CHECK,N_GUARD::QAB1(A),XB(b)
      • Refutation
        • B(b);CHECK
    • Try
      • K(D);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • B(d);CHECK,N_GUARD::QAR1(A),XB(d)
        • B(b);::QAB1(A)
      • Refutation
        • B(d);CHECK
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • QAB1(A)
    • Vars
      • B(b);SBLOCK::QAR2(A)
      • B(d);SBLOCK::QAB1(A)
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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).