MESON Chess Problem Database

Problem Display
PID: 228930 (4b3/2b4r/B6r/PR5p/KB5N/4P3/2P1kp2/Q4N2 w - - 0 1)

Ellerman, Arnoldo

3rd Prize, Tijdschrift vd NSB, 1926

4b3/2b4r/B6r/PR5p/KB5N/4P3/2P1kp2/Q4N2

#2

10 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb5+
      • 2.Bxb5#
    • 1...Bg6
      • 2.Rf5#
  • Keys
    • 1.Qd4!
      • threat
        • 2.Qd3#
      • 1...Bxb5+
        • 2.Bxb5#
      • 1...Kxf1
        • 2.Qd1#
      • 1...Rd6
        • 2.Sg3#
      • 1...Rd7
        • 2.Rb6#
      • 1...Bg6
        • 2.Rf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(g);CHECK,OGATE,P_SPINB(g),XR(I)::B(J),XB(g)
    • B(g);N_PINR(I)::B(J)+R(I)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • B(g);CHECK,OGATE,P_SPINB(g),XR(I)::B(J),XB(g)
      • K(a);S_FLIGHT,XS(B)::QAR2(A)
      • R(d);S_CUTB(e)::S(B)
      • R(f);N_PINR(I)::B(J)+R(I)
      • B(g);N_PINR(I)::B(J)+R(I)
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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).