MESON Chess Problem Database

Problem Display
PID: 258337 (R7/3K4/3p4/B4Q2/kb6/p1P5/8/8 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

Problemas, 2022

R7/3K4/3p4/B4Q2/kb6/p1P5/8/8

#2

5 + 4

SOLUTION

  • SOUND
  • Tries
    • 1.Qe4?
      • threat
        • 2.Qxb4#
      • 1...Kb5
        • 2.Qc6#
        • 2.Qxb4#
      • 1...Kb3!
    • 1.Qg4?
      • threat
        • 2.Qxb4#
      • 1...Kb5
        • 2.Qxb4#
      • 1...Kb3!
    • 1.Qf4?
      • threat
        • 2.Qxb4#
      • 1...Kb5
        • 2.Qxb4#
      • 1...Kb3!
    • 1.Qd5?
      • threat
        • 2.Bxb4#
      • 1...Bxc3
        • 2.Bxc3#
      • 1...Bxa5
        • 2.Rxa5#
        • 2.Qc4#
      • 1...Bc5!
  • Keys
    • 1.Qb1!
      • threat
        • 2.Qxb4#
      • 1...Kb5
        • 2.Qxb4#
      • 1...Bxc3
        • 2.Bxc3#
      • 1...Bxa5
        • 2.Qb4#
      • 1...Bc5
        • 2.Bb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(C);P_PINB(c)
      • Threat
        • QAR1(C),XB(c)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT
    • Try
      • Q(C);P_PINB(c)
      • Threat
        • QAR1(C),XB(c)
      • Vars
        • K(b);N_SPINB(c),S_FLIGHT::QAR1(C),XB(c)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT
    • Try
      • Q(C);P_PINB(c)
      • Threat
        • QAR1(C),XB(c)
      • Vars
        • K(b);N_SPINB(c),S_FLIGHT::QAR1(C),XB(c)
      • Refutation
        • K(b);N_SPINB(c),S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • R(E)+B(B),XB(c)
      • Vars
        • B(c);OGATE,XP(A)::R(E)+B(B),XB(c)
      • Refutation
        • B(c);
  • Actual
    • Q(C);
    • Threat
      • QAR1(C),XB(c)
    • Vars
      • K(b);P_SPINB(c),S_FLIGHT::QAR1(C),XB(c)
      • B(c);OGATE,XP(A)::R(E)+B(B),XB(c)
      • B(c);P_SPINB(c),XB(B)::QAR1(C)
      • B(c);N_GUARD::R(E)+B(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).