MESON Chess Problem Database

Problem Display
PID: 233229 (3r3q/Q7/3pB3/p3P3/2p1k2N/K5R1/4p1n1/1N3R2 w - - 0 1)

Muller, Dieter

Freie Presse, 0000

3r3q/Q7/3pB3/p3P3/2p1k2N/K5R1/4p1n1/1N3R2

#2

8 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5
      • 2.Sd2#
    • 1...Se1
      • 2.Re3#
      • 2.Qe3#
    • 1...Se3
      • 2.Rxe3#
      • 2.Qxe3#
    • 1...Sf4
      • 2.Re3#
      • 2.Qe3#
    • 1...Sxh4
      • 2.Re3#
      • 2.Qe3#
    • 1...dxe5
      • 2.Sc3#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Qd4#
      • 1...Qxe5
        • 2.Sd2#
      • 1...dxe5
        • 2.Sc3#
      • 1...Kxe5!
    • 1.Bd5+?
      • 1...Kxe5
        • 2.Rf5#
        • 2.Rg5#
      • 1...Kxd5!
    • 1.Qb7+?
      • 1...Kd4
        • 2.Qd5#
      • 1...Kxe5
        • 2.Qd5#
      • 1...d5!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qd4#
      • 1...Kd3
        • 2.Bf5#
      • 1...Kf4
        • 2.Rg4#
      • 1...Qxe5
        • 2.Sfd2#
      • 1...dxe5
        • 2.Sg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • Q(h);SBLOCK,XP(F)::S(A)
    • P(f);SBLOCK,XP(F)::S(A)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR1(H)
      • Vars
        • Q(h);SBLOCK,XP(F)::S(A)
        • P(f);SBLOCK,XP(F)::S(A)
      • Refutation
        • K(d);P-FLIGHT,XP(F)
    • Try
      • B(G);CHECK
      • Refutation
        • K(d);S_FLIGHT,XB(G)
    • Try
      • Q(H);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(H)
        • K(d);P-FLIGHT,XP(F)::QAR1(H)
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • S(E);
    • Threat
      • QAR1(H)
    • Vars
      • K(d);S_FLIGHT::B(G)
      • K(d);P-FLIGHT::R1(D)
      • Q(h);SBLOCK,XP(F)::S(E)
      • P(f);SBLOCK,XP(F)::S(E)
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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).