MESON Chess Problem Database

Problem Display
PID: 49743 (n2B4/2p5/pbQp4/k2K3R/pp5R/8/8/8 w - - 0 1)

Barnes, Barry Peter

The Problemist, 2003

n2B4/2p5/pbQp4/k2K3R/pp5R/8/8/8

#2

5 + 8

5373 Conquering Kings 2004

SOLUTION

  • SOUND
  • Sets
    • 1...b3
      • 2.Rxa4#
      • 2.Qxa4#
  • Tries
    • 1.Rxb4?
      • threat
        • 2.Rxa4#
        • 2.Qxa4#
      • 1...a3
        • 2.Ra4#
        • 2.Qa4#
      • 1...Kxb4!
  • Keys
    • 1.Qxd6!
      • threat
        • 2.Qxb4#
      • 1...c6+
        • 2.Kxc6#
      • 1...Kb5
        • 2.Qxb4#
      • 1...cxd6
        • 2.Kxd6#
      • 1...Bc5
        • 2.Qxc5#
      • 1...Bd4
        • 2.Kxd4#
      • 1...b3
        • 2.Qb4#
      • 1...c5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);XP(b)
      • Threat
        • DUALS(2)
      • Refutation
        • K(c);S_FLIGHT,XR(A)
  • Actual
    • Q(D);XP(f)
    • Threat
      • QAB1(D),XP(b)
    • Vars
      • P(g);CHECK,P_SPINB(e)::R(C)+K(B),XP(g)
      • K(c);P-FLIGHT::QAR1(D),XP(b)
      • P(g);P_SPINB(e),XQ(D)::R(C)+K(B),XP(g)
      • B(e);N_GUARD,P_SPINP(g)::QAR2(D),XB(e)
      • B(e);P_SPINP(g)::R(C)+K(B),XB(e)
      • P(b);::QAB1(D)
      • P(g);P_SPINB(e)::QAR2(D),XP(g)
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).