MESON Chess Problem Database

Problem Display
PID: 263775 (8/3Br3/7p/5Q1K/p1RPPN1R/r3k1p1/4p1P1/4B3 w - - 0 1)

van Dijk, Johannes

Tijdschrift vd NSB, 1934

8/3Br3/7p/5Q1K/p1RPPN1R/r3k1p1/4p1P1/4B3

#2

10 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Rd3
      • 2.Sd5#
  • Tries
    • 1.Rc3+?
      • 1...Kxd4
        • 2.Sxe2#
        • 2.Qd5#
      • 1...Rxc3!
    • 1.e5?
      • threat
        • 2.Sd5#
      • 1...Rxe5
        • 2.Qxe5#
      • 1...Rxd7!
  • Keys
    • 1.Qc5!
      • threat
        • 2.d5#
      • 1...Re5+
        • 2.dxe5#
      • 1...Kxe4
        • 2.Qxe7#
      • 1...Rxe4
        • 2.Qxa3#
      • 1...Rd3
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);SBLOCK::S(F)
  • Tries
    • Try
      • R(C);CHECK
      • Refutation
        • R(b);XR(C)
    • Try
      • P(E);
      • Threat
        • S(F)
      • Vars
        • R(g);OGATE,P_PINQ(H),XP(E)::QAR2(H),XR(g)
      • Refutation
        • R(g);XB(J)
  • Actual
    • Q(H);
    • Threat
      • QAB(H)+P(D)
    • Vars
      • R(g);CHECK,OGATE::QAB(H)+P(D),XR(g)
      • K(c);OGATEB,P-FLIGHT,XP(E)::QAR(H),XR(g)
      • R(g);SBLOCK,XP(E)::QAR(H),XR(b)
      • R(b);SBLOCK::S(F)
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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).