MESON Chess Problem Database

Problem Display
PID: 250078 (8/4pRBB/1KQ2b1r/2NP1qp1/1R1P1krn/6p1/3Pn1P1/8 w - - 0 1)

Hertmann, Sandor

1st Prize, Chess Amateur (The), 1927

8/4pRBB/1KQ2b1r/2NP1qp1/1R1P1krn/6p1/3Pn1P1/8

#2

11 + 10

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Se6#
    • 1...Qc2
      • 2.Se6#
    • 1...Qd3
      • 2.Sxd3#
      • 2.Se6#
    • 1...Qe6
      • 2.Sd3#
      • 2.Sxe6#
    • 1...Qd7
      • 2.Sd3#
    • 1...Qc8
      • 2.Sd3#
    • 1...Qxd5
      • 2.Sd3#
    • 1...Qe5
      • 2.Sd3#
    • 1...Be5
      • 2.Bxe5#
  • Keys
    • 1.Qe6!
      • threat
        • 2.Qe3#
      • 1...Qxe6+
        • 2.Sxe6#
      • 1...Qxh7
        • 2.Qe5#
      • 1...Bxd4
        • 2.Be5#
      • 1...Bxg7
        • 2.Sd3#
      • 1...Sxg2
        • 2.Qxf5#
      • 1...Qd3
        • 2.Sxd3#
        • 2.Qe5#
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qg6
        • 2.Qe5#
      • 1...Qe5
        • 2.Sd3#
        • 2.Qxe5#
      • 1...Be5
        • 2.Bxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 6
  • Sets
    • Q(f);N_GUARD,P_PINR(C),P_SPINB(h)::S(E)
    • Q(f);N_GUARD,P_SPINB(h)::S(E)
    • Q(f);N_GUARD,P_SPINB(h),XP(F)::S(E)
    • B(h);OGATE,P_PINQ(H),P_SPINQ(f)::B(J),XB(h)
  • Actual
    • Q(H);
    • Threat
      • QAB1(H)
    • Vars
      • Q(f);CHECK,P_SPINB(h),XQ(H)::S(E),XQ(f)
      • Q(f);N_GUARD,P_SPINB(h),XB(K)::QAB1(H)
      • B(h);OGATE,P_PINQ(H),P_PINS(E),P_SPINB(h),P_SPINQ(f),XP(D)::B(J)
      • B(h);P_PINQ(H),P_SPINQ(f),XB(J)::S(E)
      • S(e);N_GUARD,XP(B)::QAR1(H),XQ(f)
      • Q(f);N_GUARD,P_SPINB(h)::QAR1(H),XQ(f)
      • Q(f);N_GUARD,P_SPINB(h)::QAB1(H)
      • B(h);OGATE,P_PINQ(H),P_SPINQ(f)::B(J),XB(h)
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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).