MESON Chess Problem Database

Problem Display
PID: 194233 (4R3/3N4/BK1pP1pB/3k1p2/3p1R2/6p1/3Q4/bb2q2r w - - 0 1)

Fink, Adolf Jay

Pittsburgh Gazette-Times, 1917

4R3/3N4/BK1pP1pB/3k1p2/3p1R2/6p1/3Q4/bb2q2r

#2

8 + 10

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qf2
      • 2.Qa5#
    • 1...Qd1
      • 2.Qa5#
    • 1...Qg1
      • 2.Qa5#
    • 1...Qe3
      • 2.Qa5#
    • 1...Qe4
      • 2.Qa5#
    • 1...Qe5
      • 2.Qa5#
    • 1...Qxe6
      • 2.Qa5#
    • 1...Ba2
      • 2.Qxa2#
    • 1...Be4
      • 2.Qa2#
    • 1...d3
      • 2.Bc4#
      • 2.Bb7#
  • Tries
    • 1.Qxe1?
      • threat
        • 2.Sf6#
        • 2.Qa5#
      • 1...Bc3
        • 2.Sf6#
      • 1...Bd3
        • 2.Sf6#
      • 1...Be4
        • 2.Qa5#
      • 1...d3
        • 2.Bc4#
        • 2.Bb7#
        • 2.Qa5#
      • 1...Rxe1!
    • 1.Qg2+?
      • 1...Be4
        • 2.Qa2#
      • 1...Qe4!
  • Keys
    • 1.Re4!
      • threat
        • 2.Sf6#
      • 1...Kxe4
        • 2.Qg2#
      • 1...Qxe4
        • 2.Qa5#
      • 1...Bxe4
        • 2.Qa2#
      • 1...fxe4
        • 2.Qg5#
      • 1...d3
        • 2.Bb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 7
  • Sets
    • Q(c);N_GUARD::QAR(A)
    • Q(c);N_GUARD,XP(E)::QAR(A)
    • B(b);N_GUARD::QAB(A),XB(b)
    • B(b);N_GUARD::QAB(A)
  • Tries
    • Try
      • Q(A);N_PINP(f),XQ(c)
      • Threat
        • DUALS(2)
      • Vars
        • B(a);::S(G)
        • B(b);::S(G)
        • B(b);::QAR(A)
      • Refutation
        • R(d);XQ(A)
    • Try
      • Q(A);CHECK,N_PINP(f)
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAB(A)
      • Refutation
        • Q(c);P_SPINQ(c)
  • Actual
    • R(B);
    • Threat
      • S(G)
    • Vars
      • K(g);N_SPINP(f),OGATEB,S_FLIGHT,XR(B)::QAB(A)
      • Q(c);N_GUARD,SBLOCK,XR(B)::QAR(A)
      • B(b);N_GUARD,SBLOCK,XR(B)::QAB(A)
      • P(h);OGATEB,SBLOCK,XR(B)::QAR(A)
      • P(f);::B(C)
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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).