MESON Chess Problem Database

Problem Display
PID: 205470 (3Q4/2Npbp2/4p3/8/R2Pk3/5R2/6K1/8 w - - 0 1)

Abdullayev, Suleyman

ChessStar, 2017

3Q4/2Npbp2/4p3/8/R2Pk3/5R2/6K1/8

#2

6 + 5

15148 Sadier Collection 2020
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Ba3
      • 2.Qh4#
    • 1...Bb4
      • 2.Qh4#
    • 1...Bh4
      • 2.Qxh4#
    • 1...Bc5
      • 2.Qh4#
    • 1...Bd6
      • 2.Qa8#
    • 1...Bf8
      • 2.Qh4#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Sc3#
      • 1...Kd5
        • 2.Qa8#
      • 1...Bb4!
  • Keys
    • 1.Qh8!
      • threat
        • 2.Qe5#
      • 1...Bd6
        • 2.Qa8#
      • 1...Bf6
        • 2.Qh7#
      • 1...e5
        • 2.Qxe5#
      • 1...d6
        • 2.d5#
      • 1...f6
        • 2.Qh4#

Anticipated by 9374(1901), 227504(1926), 248090(1944), 232752(1976)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • B(d);OGATE::QAR(F)
    • B(d);OGATE::QAR(F),XB(d)
    • B(d);S_CUTP(c)::QAB(F)
  • Tries
    • Try
      • S(E);
      • Threat
        • S(E)
      • Vars
        • K(a);P_SPINP(c),S_FLIGHT::QAB(F)
      • Refutation
        • B(d);
  • Actual
    • Q(F);
    • Threat
      • QAR1(F)
    • Vars
      • B(d);S_CUTP(c)::QAB(F)
      • B(d);S_CUTP(e)::QAB(F)
      • P(b);::QAR1(F),XP(b)
      • P(c);S_CUTB(d)::R(C)+P(D)
      • P(e);S_CUTB(d)::QAR(F)
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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).