MESON Chess Problem Database

Problem Display
PID: 174175 (rbN5/p3Kp2/P1k1p3/1p1Np3/1Q6/8/3p4/8 w - - 0 1)

Buchner, Richard

Frankische Tagespost, 1928

rbN5/p3Kp2/P1k1p3/1p1Np3/1Q6/8/3p4/8

#2

5 + 9

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6+
      • 2.Qxd6#
    • 1...exd5
      • 2.Qc3#
  • Tries
    • 1.Kd8?
      • threat
        • 2.Sde7#
        • 2.Sce7#
      • 1...Kxd5
        • 2.Se7#
      • 1...exd5
        • 2.Qc3#
      • 1...d1Q
        • 2.Se7#
      • 1...d1R
        • 2.Se7#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Bc7+!
    • 1.Se3?
      • threat
        • 2.Qc3#
      • 1...Bd6+
        • 2.Qxd6#
      • 1...Kc7
        • 2.Qc3#
        • 2.Qc5#
      • 1...d1S!
    • 1.Sf6?
      • threat
        • 2.Qc3#
      • 1...Bd6+
        • 2.Qxd6#
      • 1...Kc7
        • 2.Qc3#
        • 2.Qc5#
      • 1...d1S!
    • 1.Sc7?
      • threat
        • 2.Qc3#
        • 2.Qd6#
      • 1...Kxc7
        • 2.Qc3#
        • 2.Qc5#
      • 1...d1Q
        • 2.Qc3#
      • 1...d1S
        • 2.Qd6#
      • 1...d1R
        • 2.Qc3#
      • 1...Bxc7!
  • Keys
    • 1.Ke8!
      • threat
        • 2.Sce7#
      • 1...Kxd5
        • 2.Se7#
      • 1...exd5
        • 2.Qc3#
      • 1...Bd6
        • 2.Qxd6#
      • 1...Bc7
        • 2.Se7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • B(i);CHECK,N_GUARD::QAR1(A),XB(i)
    • P(e);SBLOCK,XS(B)::QAR(A)
  • Tries
    • Try
      • K(D);S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • K(d);S_FLIGHT,XS(B)::S(E)
        • P(e);SBLOCK,XS(B)::QAR(A)
        • P(a);P_PINS(B)::S(E)
        • B(i);N_GUARD,P_PINS(E)::QAR1(A),XB(i)
      • Refutation
        • B(i);CHECK,P_PINS(E)
    • Try
      • S(B);
      • Threat
        • QAR(A)
      • Vars
        • B(i);CHECK,N_GUARD::QAR1(A),XB(i)
      • Refutation
        • P(a);
    • Try
      • S(B);
      • Threat
        • QAR(A)
      • Vars
        • B(i);CHECK,N_GUARD::QAR1(A),XB(i)
      • Refutation
        • P(a);
    • Try
      • S(B);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAR(A)
        • P(a);::QAR1(A)
      • Refutation
        • B(i);XS(B)
  • Actual
    • K(D);P-FLIGHT
    • Threat
      • S(E)
    • Vars
      • K(d);S_FLIGHT,XS(B)::S(E)
      • P(e);SBLOCK,XS(B)::QAR(A)
      • B(i);N_GUARD,P_PINS(E)::QAR1(A),XB(i)
      • B(i);P_PINS(E),SBLOCK::S(B)
HTML5 logo

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).