MESON Chess Problem Database

Problem Display
PID: 206512 (8/8/8/2p1p3/2P5/1K1k4/5QB1/8 w - - 0 1)

Palatz, Franz Ferdinand Ludwig

L'Eclaireur du Soir, 1925

8/8/8/2p1p3/2P5/1K1k4/5QB1/8

#2

4 + 3

6490 yacpdb 2020
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Bf1#
  • Tries
    • 1.Kb2?
      • 1...e4
        • 2.Bf1#
      • 1...Kxc4!
    • 1.Qe1?
      • 1...Kd4
        • 2.Qd2#
        • 2.Qc3#
        • 2.Qe4#
      • 1...e4!
    • 1.Qc2+?
      • 1...Kd4
        • 2.Qe4#
        • 2.Qd2#
        • 2.Qc3#
      • 1...Ke3!
    • 1.Qe2+?
      • 1...Kd4
        • 2.Qd2#
        • 2.Qe4#
      • 1...Kxe2!
    • 1.Qf3+?
      • 1...Kd4
        • 2.Qe4#
        • 2.Qc3#
      • 1...Kd2!
  • Keys
    • 1.Bh3!
      • 1...Ke4
        • 2.Bf5#
      • 1...e4
        • 2.Bf1#

This anticipates 158491(1988)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);SBLOCK::B(B)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(c);SBLOCK::B(B)
      • Refutation
        • K(a);S_FLIGHT,XP(D)
    • Try
      • Q(A);
      • Refutation
        • P(c);
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(a);S_FLIGHT::B(B)
      • P(c);SBLOCK::B(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).