MESON Chess Problem Database

Problem Display
PID: 37998 (4R3/3p4/2Q5/8/8/8/3k1K2/8 w - - 0 1)

McDowell, Michael

The Problemist, 1990

4R3/3p4/2Q5/8/8/8/3k1K2/8

#2

3 + 2

2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Tries
    • 1.Re2+?
      • 1...Kd1
        • 2.Qh1#
        • 2.Qc2#
      • 1...Kd3!
    • 1.Rc8?
      • threat
        • 2.Qd5#
        • 2.Qxd7#
        • 2.Qc2#
        • 2.Qd6#
      • 1...Kd1
        • 2.Qd5#
        • 2.Qxd7#
        • 2.Qc1#
        • 2.Qc2#
        • 2.Qd6#
      • 1...Kd3
        • 2.Qd5#
      • 1...d5
        • 2.Qxd5#
        • 2.Qc2#
      • 1...d6
        • 2.Qd5#
        • 2.Qc2#
        • 2.Qxd6#
      • 1...dxc6!
    • 1.Qc3+?
      • 1...Kd1
        • 2.Re1#
      • 1...Kxc3!
  • Keys
    • 1.Rd8!
      • threat
        • 2.Rxd7#
      • 1...Kd1
        • 2.Rxd7#
      • 1...Kd3
        • 2.Rxd7#
      • 1...d5
        • 2.Rxd5#
      • 1...d6
        • 2.Rxd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(C);
      • Threat
        • DUALS(4)
      • Vars
        • K(a);P-FLIGHT::QAR2(B)
      • Refutation
        • P(b);XQ(B)
    • Try
      • Q(B);CHECK
      • Vars
        • K(a);P-FLIGHT::R1(C)
      • Refutation
        • K(a);S_FLIGHT,XQ(B)
  • Actual
    • R(C);P_PINP(b)
    • Threat
      • R(C),XP(b)
    • Vars
      • K(a);P-FLIGHT::R(C),XP(b)
      • P(b);OGATE::R(C),XP(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).