MESON Chess Problem Database

Problem Display
PID: 96616 (4r3/1B6/3P1p2/p2p4/r3k1P1/2Qp2K1/3P4/8 w - - 0 1)

Nield, Joshua

The Chess Problem, 1944

4r3/1B6/3P1p2/p2p4/r3k1P1/2Qp2K1/3P4/8

#2

6 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qxd3+?
      • 1...Ke5
        • 2.Qxd5#
      • 1...Kxd3!
    • 1.Qc4+?
      • 1...Ke5
        • 2.Qxd5#
      • 1...Rxc4!
    • 1.Qc5?
      • threat
        • 2.Qe3#
        • 2.Qxd5#
      • 1...Ke5
        • 2.Qxd5#
      • 1...Re5
        • 2.Qe3#
      • 1...Rd4!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qxd5#
      • 1...Kd4
        • 2.Qxd5#
      • 1...Ke5
        • 2.Qxd5#
      • 1...Rd4
        • 2.Qxe8#
      • 1...Re5
        • 2.Qxa4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);CHECK,XP(a)
      • Vars
        • K(c);N_SPINP(e),P-FLIGHT::QAR1(B),XP(e)
      • Refutation
        • K(c);N_SPINP(e),S_FLIGHT,XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);N_SPINP(e),P-FLIGHT::QAR1(B),XP(e)
      • Refutation
        • R(b);XQ(B)
    • Try
      • Q(B);
      • Threat
        • DUALS(2)
      • Vars
        • K(c);P-FLIGHT::QAR1(B),XP(e)
        • R(g);SBLOCK::QAR1(B)
      • Refutation
        • R(b);
  • Actual
    • Q(B);
    • Threat
      • QAB1(B),XP(e)
    • Vars
      • K(c);N_SPINP(e),P-FLIGHT::QAR1(B),XP(e)
      • R(b);SBLOCK::QAR(B),XR(g)
      • R(g);SBLOCK::QAR(B),XR(b)
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).