MESON Chess Problem Database

Problem Display
PID: 206700 (8/8/4B3/2p5/2Npk3/1P1Rp3/4N3/5K2 w - - 0 1)

Morgner, Willy

Funkschach, 1925

8/8/4B3/2p5/2Npk3/1P1Rp3/4N3/5K2

#2

6 + 4

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd3
      • 2.Bf5#
    • 1...Kf3
      • 2.Sd2#
  • Tries
    • 1.Ke1?
      • 1...Kxd3
        • 2.Bf5#
      • 1...Kf3!
    • 1.Bh3?
      • 1...Kxd3
        • 2.Bf5#
      • 1...Kf3
        • 2.Sd2#
      • 1...Kd5!
    • 1.Bg4?
      • 1...Kxd3
        • 2.Bf5#
      • 1...Kd5!
    • 1.Bc8?
      • 1...Kxd3
        • 2.Bf5#
      • 1...Kf3
        • 2.Sd2#
      • 1...Kd5!
    • 1.Rxd4+?
      • 1...Kf3
        • 2.Se5#
        • 2.Bg4#
        • 2.Bd5#
        • 2.Rf4#
      • 1...cxd4!
  • Keys
    • 1.Bd7!
      • 1...Kxd3
        • 2.Bf5#
      • 1...Kf3
        • 2.Sd2#
      • 1...Kd5
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XR(D)::B(F)
    • K(c);P_SPINP(a),S_FLIGHT::S(E)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(c);S_FLIGHT,XR(D)::B(F)
      • Refutation
        • K(c);P_SPINP(a),S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(c);S_FLIGHT,XR(D)::B(F)
        • K(c);P_SPINP(a),S_FLIGHT::S(E)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(c);S_FLIGHT,XR(D)::B(F)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
    • Try
      • B(F);
      • Vars
        • K(c);S_FLIGHT,XR(D)::B(F)
        • K(c);P_SPINP(a),S_FLIGHT::S(E)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
    • Try
      • R(D);CHECK,XP(b)
      • Refutation
        • P(d);XR(D)
  • Actual
    • B(F);
    • Vars
      • K(c);S_FLIGHT,XR(D)::B(F)
      • K(c);P_SPINP(a),S_FLIGHT::S(E)
      • K(c);P_SPINP(b),S_FLIGHT::S(B)
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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).