MESON Chess Problem Database

Problem Display
PID: 198344 (5kN1/1bp1Rp2/2P2P2/K7/p7/B6r/7b/6R1 w - - 0 1)

ten Cate, Pieter

Rostra Gymnasiorum, 1920

5kN1/1bp1Rp2/2P2P2/K7/p7/B6r/7b/6R1

#2

7 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Rh5+
      • 2.Re5#
    • 1...Rh6
      • 2.Re5#
    • 1...Rh7
      • 2.Re5#
    • 1...Rh8
      • 2.Re5#
  • Tries
    • 1.Rd7+?
      • 1...Rxa3
        • 2.Rd8#
      • 1...Bd6
        • 2.Rd8#
      • 1...Ke8!
    • 1.Rxf7+?
      • 1...Ke8
        • 2.Rf8#
      • 1...Kxf7!
  • Keys
    • 1.Sh6!
      • threat
        • 2.Rg8#
      • 1...Rh5+
        • 2.Re5#
      • 1...Rxh6
        • 2.Re5#
      • 1...Bxg1
        • 2.Re3#
      • 1...Rg3
        • 2.Re3#
      • 1...Bg3
        • 2.Re5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(b);CHECK,N_GUARD::B(B)+R(F)
    • R(b);N_GUARD::B(B)+R(F)
  • Tries
    • Try
      • R(F);CHECK
      • Vars
        • R(b);XB(B)::R(F)
        • B(a);P_SPINB(a)::R(F)
      • Refutation
        • K(g);P-FLIGHT
    • Try
      • R(F);CHECK,XP(f)
      • Vars
        • K(g);P-FLIGHT::R1(F)
      • Refutation
        • K(g);P-FLIGHT,XR(F)
  • Actual
    • S(G);
    • Threat
      • R1(A)
    • Vars
      • R(b);CHECK,N_GUARD::B(B)+R(F)
      • R(b);N_GUARD,XS(G)::B(B)+R(F)
      • B(a);N_GUARD,XR(A)::B(B)+R(F)
      • R(b);S_CUTB(a)::B(B)+R(F)
      • B(a);S_CUTR(b)::B(B)+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).