MESON Chess Problem Database

Problem Display
PID: 224666 (2R4K/8/4p3/1Ppb3N/2pk2P1/4N3/1R6/1B4B1 w - - 0 1)

Ernst, Heinrich

The Sunny South, 1887

2R4K/8/4p3/1Ppb3N/2pk2P1/4N3/1R6/1B4B1

#2

9 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Sd1#
    • 1...e5
      • 2.Sd1#
  • Tries
    • 1.Sxc4+?
      • 1...Kxc4
        • 2.Rxc5#
      • 1...Kc3!
    • 1.Sf5+?
      • 1...Ke5
        • 2.Bh2#
      • 1...Kc3!
    • 1.Rd2+?
      • 1...Ke5
        • 2.Bh2#
      • 1...Kc3!
  • Keys
    • 1.Rxc5!
      • 1...Kc3
        • 2.Sd1#
      • 1...Kxc5
        • 2.Sf5#
      • 1...Ke5
        • 2.Sxc4#
      • 1...Bh1
        • 2.Sd1#
      • 1...Bg2
        • 2.Sd1#
      • 1...Bf3
        • 2.Sd1#
      • 1...Be4
        • 2.Sd1#
      • 1...Bc6
        • 2.Sd1#
      • 1...Bb7
        • 2.Sd1#
      • 1...Ba8
        • 2.Sd1#
      • 1...c3
        • 2.Sc4#
      • 1...e5
        • 2.Sd1#
        • 2.Sxd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • K(b);S_FLIGHT::S(D)
    • P(e);SBLOCK::B(B)+S(D)
  • Tries
    • Try
      • S(D);CHECK,XP(a)
      • Vars
        • K(b);P-FLIGHT,P_SPINP(c),XS(D)::R1(H),XP(c)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(b);S_FLIGHT::B(B)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT::B(B)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • R(H);XP(c)
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::S(D)
      • K(b);S_FLIGHT,XR(H)::B(B)+S(D)
      • K(b);P_SPINB(d),S_FLIGHT::S(D),XP(a)
      • B(d);::B(B)+S(D)
      • P(a);SBLOCK::B(B)+S(D)
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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).