MESON Chess Problem Database

Problem Display
PID: 132923 (8/8/6p1/7b/4KQ2/8/6kp/R7 w - - 0 1)

Andreev, Aleksandr Grigorevich

200 Shakhmatni Zadachi, 1983

8/8/6p1/7b/4KQ2/8/6kp/R7

#2

3 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...Bf3+
      • 2.Qxf3#
  • Keys
    • 1.Rh1!
      • threat
        • 2.Qxh2#
      • 1...Bf3+
        • 2.Qxf3#
      • 1...Kxh1
        • 2.Qf1#
      • 1...Kh3
        • 2.Rxh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(c);CHECK,N_GUARD::QAB1(C),XB(c)
  • Actual
    • R(A);
    • Threat
      • QAR1(C),XP(b)
    • Vars
      • B(c);CHECK,N_GUARD::QAB1(C),XB(c)
      • K(a);S_FLIGHT,XR(A)::QAR2(C)
      • K(a);P_SPINP(b),S_FLIGHT::R1(A),XP(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).