MESON Chess Problem Database

Problem Display
PID: 274059 (8/7B/4N3/8/1p1P2p1/1R1PkpN1/1RP2p1n/2K2b2 w - - 0 1)

Reddmann, Hauke

Die Schwalbe, 2023

8/7B/4N3/8/1p1P2p1/1R1PkpN1/1RP2p1n/2K2b2

#2

9 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Be2
      • 2.Sf5#
    • 1...Bxd3
      • 2.Rxd3#
  • Tries
    • 1.Kd1?
      • threat
        • 2.Sf5#
      • 1...Bxd3
        • 2.Rxd3#
      • 1...Be2+!
    • 1.c4?
      • threat
        • 2.Sf5#
      • 1...Bxd3
        • 2.Rxd3#
      • 1...bxc4 ep!
  • Keys
    • 1.d5!
      • 1...Bxd3
        • 2.Rxd3#
      • 1...Bg2
        • 2.d4#
      • 1...Be2
        • 2.Sf5#
      • 1...Bh3
        • 2.d4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(a);SBLOCK::S(F)
    • B(a);OGATE,P_SPINB(a),XP(E)::R1(D),XB(a)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • S(F)
      • Vars
        • B(a);OGATE,P_SPINB(a),XP(E)::R1(D),XB(a)
      • Refutation
        • B(a);CHECK
    • Try
      • P(C);
      • Threat
        • S(F)
      • Vars
        • B(a);OGATE,P_SPINB(a),XP(E)::R1(D),XB(a)
      • Refutation
        • P(f);EP,XP(C)
  • Actual
    • P(G);
    • Vars
      • B(a);OGATE,P_SPINB(a),XP(E)::R1(D),XB(a)
      • B(a);N_GUARD::R(D)+P(E)
      • B(a);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).