MESON Chess Problem Database

Problem Display
PID: 262751 (8/2qrp3/8/2bpkPK1/8/1P2p1P1/5PQ1/7B w - - 0 1)

Hadzi-Vaskov, Georgi

Comm., SuperProblem, 2013

8/2qrp3/8/2bpkPK1/8/1P2p1P1/5PQ1/7B

#2

7 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kd6
      • 2.Qxd5#
    • 1...Bd6
      • 2.Qxd5#
  • Tries
    • 1.Qe4+?
      • 1...Kd6
        • 2.Qxd5#
        • 2.Qe6#
      • 1...dxe4!
    • 1.f4+?
      • 1...Kd6
        • 2.Qxd5#
      • 1...Kd4!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qf4#
      • 1...Kd4
        • 2.Qxe3#
      • 1...Kd6
        • 2.Qxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • K(d);S_CUTR(f),S_FLIGHT::QAR1(C),XP(c)
    • B(b);S_CUTR(f)::QAR1(C),XP(c)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • P(c);XQ(C)
    • Try
      • P(B);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR1(C),XP(c)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • K(d);N_GUARD,S_CUTB(b),S_FLIGHT::QAB1(C),XP(a)
      • K(d);S_CUTR(f),S_FLIGHT::QAR1(C),XP(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).