MESON Chess Problem Database

Problem Display
PID: 169987 (8/8/3pp3/1Q6/3kpR2/8/2K5/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

3rd HM., Volchek-50 JT, 2016

8/8/3pp3/1Q6/3kpR2/8/2K5/8

#2

3 + 4

145 StrateGems 2017

SOLUTION

  • SOUND
  • Tries
    • 1.Qd3+?
      • 1...Ke5
        • 2.Qxe4#
      • 1...Kc5!
    • 1.Qc4+?
      • 1...Ke3
        • 2.Qxe4#
      • 1...Ke5
        • 2.Qxe4#
      • 1...Kxc4!
    • 1.Qb4+?
      • 1...Ke3
        • 2.Qd2#
        • 2.Qxe4#
      • 1...Ke5
        • 2.Qxe4#
      • 1...Kd5!
    • 1.Qa5?
      • 1...Ke3
        • 2.Qd2#
      • 1...Kc4
        • 2.Rxe4#
      • 1...d5
        • 2.Qc3#
      • 1...e5!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Rxe4#
      • 1...Ke3
        • 2.Qxe4#
      • 1...Ke5
        • 2.Qxe4#
      • 1...d5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAR1(C),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);N_SPINP(b),OGATE,S_FLIGHT::QAR1(C),XP(b)
      • Refutation
        • K(a);P-FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);N_SPINP(b),OGATE,S_FLIGHT::QAR1(C),XP(b)
      • Refutation
        • K(a);N_SPINP(b),P-FLIGHT
    • Try
      • Q(C);
      • Vars
        • K(a);N_SPINP(b),S_FLIGHT::QAB1(C)
        • K(a);P-FLIGHT::R(B),XP(b)
        • P(c);SBLOCK::QAB1(C)
      • Refutation
        • P(d);
  • Actual
    • Q(C);
    • Threat
      • R1(B),XP(b)
    • Vars
      • K(a);N_SPINP(b),S_FLIGHT::QAR1(C),XP(b)
      • P(c);SBLOCK::QAB1(C)
HTML5 logo

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).