MESON Chess Problem Database

Problem Display
PID: 101285 (4R3/4B3/8/1K1Bk3/2prn3/2Q3P1/8/4R3 w - - 0 1)

Weiss, Berthold

Good Companions (February Meredith Ty.), 1917

4R3/4B3/8/1K1Bk3/2prn3/2Q3P1/8/4R3

#2

7 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Rxe4+?
      • 1...Kxd5
        • 2.Qxd4#
      • 1...Kf5!
    • 1.Qxd4+?
      • 1...Kf5
        • 2.Qxe4#
      • 1...Kxd4!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qh5#
      • 1...Rxd5+
        • 2.Bc5#
      • 1...Kxd5
        • 2.Qf5#
      • 1...Rd1
        • 2.Qxe4#
      • 1...Rd2
        • 2.Qxe4#
      • 1...Rd3
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(A);CHECK,XS(c)
      • Vars
        • K(d);N_SPINR(b),P-FLIGHT,XB(E)::QAR1(B),XR(b)
      • Refutation
        • K(d);N_SPINR(b),P-FLIGHT
    • Try
      • Q(B);CHECK,XR(b)
      • Vars
        • K(d);N_SPINS(c),P-FLIGHT::QAB1(B),XS(c)
      • Refutation
        • K(d);N_SPINS(c),S_FLIGHT,XQ(B)
  • Actual
    • Q(B);N_PINR(b)
    • Threat
      • QAR(B)
    • Vars
      • R(b);CHECK,SBLOCK,XB(E)::R(G)+B(F)
      • K(d);P-FLIGHT,XB(E)::QAR2(B)
      • R(b);N_GUARD::QAR1(B),XS(c)
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).