MESON Chess Problem Database

Problem Display
PID: 24608 (2r5/3p4/r6B/6R1/b1RP1kn1/3Pp1n1/4p1KQ/4b3 w - - 0 1)

van Westrum, Louis Ceril Schade

6th Place, Hornerheide vs van Dalfsen, 1943

2r5/3p4/r6B/6R1/b1RP1kn1/3Pp1n1/4p1KQ/4b3

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.dxc5#
    • 1...Ra8
      • 2.d5#
    • 1...Rb8
      • 2.d5#
    • 1...Rd8
      • 2.d5#
    • 1...Rf8
      • 2.d5#
    • 1...Rg8
      • 2.d5#
    • 1...Rh8
      • 2.d5#
    • 1...Bd2
      • 2.Qxg3#
    • 1...Bc3
      • 2.Qxg3#
    • 1...Bb4
      • 2.Qxg3#
    • 1...Ba5
      • 2.Qxg3#
    • 1...Bc6+
      • 2.d5#
    • 1...Sf2
      • 2.Qxg3#
  • Tries
    • 1.Rxg4+?
      • 1...Kxg4
        • 2.Qh3#
      • 1...Kf5!
  • Keys
    • 1.Qh4!
      • threat
        • 2.Qxg4#
      • 1...Bc6+
        • 2.Rd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 12
  • Sets
    • R(j);OGATE::R(D)+P(E),XR(j)
    • R(j);N_GUARD::R(D)+P(E)
    • B(a);N_GUARD::QAB1(B),XS(d)
    • B(e);CHECK,S_CUTR(j)::R(D)+P(E)
    • S(g);S_CUTB(a)::QAB1(B),XS(d)
  • Tries
    • Try
      • R(F);CHECK,XS(g)
      • Vars
        • K(f);N_SPINS(d),P-FLIGHT,XR(F)::QAB1(B)
      • Refutation
        • K(f);N_SPINS(d),P-FLIGHT
  • Actual
    • Q(B);N_PINS(d),P_PINS(g)
    • Threat
      • QAR1(B),XS(g)
    • Vars
      • B(e);CHECK,S_CUTR(h)::B(G)+R(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).