MESON Chess Problem Database

Problem Display
PID: 198648 (3Q4/4R3/8/8/7b/6k1/4B3/7K w - - 0 1)

Grabowski, Kazimierz

Tygodnik Illustrowany, 1921

3Q4/4R3/8/8/7b/6k1/4B3/7K

#2

4 + 2

3713 Snap 2019
6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qc7+?
      • 1...Kh3
        • 2.Qh2#
      • 1...Kf2!
    • 1.Qd6+?
      • 1...Kh3
        • 2.Qh2#
      • 1...Kf2!
    • 1.Qb8+?
      • 1...Kh3
        • 2.Qh2#
      • 1...Kf2!
    • 1.Qg8+?
      • 1...Kf2
        • 2.Qg1#
      • 1...Kh3
        • 2.Bf1#
        • 2.Qg2#
        • 2.Qg4#
      • 1...Kf4
        • 2.Qg4#
      • 1...Bg5!
  • Keys
    • 1.Qh8!
      • 1...Kf2
        • 2.Qxh4#
      • 1...Kh3
        • 2.Re3#
      • 1...Kf4
        • 2.Qe5#
      • 1...Bxe7
        • 2.Qh2#
      • 1...Bg5
        • 2.Qh2#
      • 1...Bf6
        • 2.Qh2#

Anticipated by 175530(1900)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(D);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAB1(D)
        • K(a);S_FLIGHT::QAR1(D)
      • Refutation
        • B(b);P_SPINB(b)
  • Actual
    • Q(D);
    • Vars
      • K(a);S_FLIGHT::QAB(D),XB(b)
      • K(a);P-FLIGHT,P_SPINB(b)::R(C)
      • K(a);S_FLIGHT::QAB1(D)
      • B(b);OGATE,XR(C)::QAB1(D)
      • B(b);OGATE::QAB1(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).