MESON Chess Problem Database

Problem Display
PID: 161470 (8/8/1K6/8/8/1p6/kr1BQ3/1R6 w - - 0 1)

Andreev, Aleksandr Grigorevich

Bankovskaya gazeta, 1996

8/8/1K6/8/8/1p6/kr1BQ3/1R6

#2

4 + 3

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Ka3
      • 2.Qa6#
  • Tries
    • 1.Qd3?
      • 1...Ka3
        • 2.Qa6#
      • 1...Rxd2
        • 2.Qxb3#
      • 1...Rc2
        • 2.Qxb3#
      • 1...Rxb1!
  • Keys
    • 1.Bc3!
      • threat
        • 2.Qxb2#
      • 1...Kxb1
        • 2.Qxb2#
      • 1...Ka3
        • 2.Qa6#
      • 1...Rxe2
        • 2.Ra1#
      • 1...Rc2
        • 2.Ra1#
      • 1...Rd2
        • 2.Ra1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::QAR(C)
  • Tries
    • Try
      • Q(C);
      • Vars
        • K(a);P-FLIGHT,P_SPINP(c)::QAR(C)
        • R(b);N_GUARD,XB(B)::QAB1(C),XP(c)
        • R(b);N_GUARD::QAB1(C),XP(c)
      • Refutation
        • R(b);XR(A)
  • Actual
    • B(B);P_PINR(b)
    • Threat
      • QAR1(C),XR(b)
    • Vars
      • K(a);N_SPINR(b),S_FLIGHT,XR(A)::QAR1(C),XR(b)
      • K(a);N_SPINR(b),P-FLIGHT::QAR(C)
      • R(b);N_SPINR(b),XQ(C)::R1(A)
      • R(b);::R1(A)
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).