MESON Chess Problem Database

Problem Display
PID: 243717 (1n4B1/2N5/p2K1N1Q/p5P1/pk1P1Rn1/rPp5/bq6/1R2B3 w - - 0 1)

Baturin, Aleksandr Adrianovich

Shakhmaty i Shashki, 1934

1n4B1/2N5/p2K1N1Q/p5P1/pk1P1Rn1/rPp5/bq6/1R2B3

#2

11 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Sfd5#
      • 2.d5#
    • 1...Qc1
      • 2.Sfd5#
    • 1...Qc2
      • 2.Sfd5#
    • 1...Qd2
      • 2.Sfd5#
    • 1...Qe2
      • 2.Sfd5#
    • 1...Qf2
      • 2.Sfd5#
    • 1...Qh2
      • 2.Sfd5#
    • 1...Qxb3
      • 2.d5#
    • 1...Se5
      • 2.dxe5#
    • 1...axb3
      • 2.d5#
  • Tries
    • 1.Bxc3+?
      • 1...Qxc3
        • 2.Sfd5#
      • 1...Kxc3!
  • Keys
    • 1.Qf8!
      • threat
        • 2.Qxb8#
      • 1...Rxb3
        • 2.Kd5#
      • 1...axb3
        • 2.d5#
      • 1...Qe2
        • 2.Sfd5#
      • 1...Qg2
        • 2.Ke6#
      • 1...Sc6
        • 2.Kxc6#
      • 1...Sd7
        • 2.Kxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • Q(b);::S(H)
    • Q(b);N_SPINP(d),P_PINP(D)::S(H)
    • Q(b);P_PINR(E)::S(H)
    • Q(b);P_SPINQ(b),XP(C)::R(E)+P(D)
    • S(g);OGATE::R(E)+P(D),XS(g)
    • P(e);SBLOCK,XP(C)::R(E)+P(D)
  • Tries
    • Try
      • B(B);CHECK,XP(d)
      • Vars
        • Q(b);XB(B)::S(H)
      • Refutation
        • K(f);S_FLIGHT,XB(B)
  • Actual
    • Q(I);
    • Threat
      • QAR(I),XS(j)
    • Vars
      • R(c);SBLOCK,XP(C)::QAB(I)+K(G)
      • P(e);SBLOCK,XP(C)::R(E)+P(D)
      • Q(b);::S(H)
      • Q(b);::QAB(I)+K(G)
      • S(j);::QAB(I)+K(G),XS(j)
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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).