MESON Chess Problem Database

Problem Display
PID: 194250 (8/1p3KB1/1p1pPRP1/2b5/2N1kN1R/1P4QB/2n5/3q3b w - - 0 1)

Rothstein, Louis

Pittsburgh Gazette-Times, 1917

8/1p3KB1/1p1pPRP1/2b5/2N1kN1R/1P4QB/2n5/3q3b

#2

11 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qg4
      • 2.Qd3#
    • 1...Qh5
      • 2.Qd3#
    • 1...Qa1
      • 2.Qd3#
    • 1...Qb1
      • 2.Qd3#
    • 1...Qc1
      • 2.Qd3#
    • 1...Qe1
      • 2.Qd3#
    • 1...Qg1
      • 2.Qd3#
    • 1...Qd3
      • 2.Qxd3#
    • 1...Qd4
      • 2.Bf5#
    • 1...Qd5
      • 2.Se2#
      • 2.Sg2#
      • 2.Sd3#
      • 2.Sh5#
    • 1...Bd4
      • 2.Bf5#
    • 1...Sd4
      • 2.Qe3#
    • 1...d5
      • 2.Se2#
  • Tries
    • 1.Sd2+?
      • 1...Kd4
        • 2.Rf5#
      • 1...Ke5
        • 2.Rf5#
      • 1...Qxd2!
  • Keys
    • 1.e7!
      • threat
        • 2.Re6#
      • 1...Qd5+
        • 2.Se6#
      • 1...Kd4
        • 2.Re6#
      • 1...Qg4
        • 2.Qd3#
      • 1...Qh5
        • 2.Qd3#
      • 1...Qa1
        • 2.Qd3#
      • 1...Qd4
        • 2.Bf5#
      • 1...Bd4
        • 2.Bf5#
      • 1...Sd4
        • 2.Qe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 6
  • Sets
    • Q(a);N_GUARD::QAB1(B)
    • Q(a);N_GUARD,P_PINP(I)::QAB1(B)
    • Q(a);N_GUARD::QAB1(B),XQ(a)
    • Q(a);SBLOCK::B(C)
    • B(e);SBLOCK::B(C)
    • S(c);N_GUARD,S_CUTB(e)::QAR1(B)
    • P(g);SBLOCK::R(F)+S(E)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(d);P-FLIGHT::B(K)+R(H)
        • K(d);P-FLIGHT::B(K)+R(H),DCHECK
      • Refutation
        • Q(a);XS(D)
  • Actual
    • P(G);
    • Threat
      • R(H)
    • Vars
      • Q(a);CHECK,N_GUARD,SBLOCK::R(F)+S(E)
      • K(d);P-FLIGHT::B(K)+R(H)
      • Q(a);N_GUARD::QAB1(B)
      • Q(a);N_GUARD,P_PINP(I)::QAB1(B)
      • Q(a);SBLOCK::B(C)
      • B(e);SBLOCK::B(C)
      • S(c);N_GUARD,S_CUTB(e)::QAR1(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).