MESON Chess Problem Database

Problem Display
PID: 54024 (2b1Q3/1Bp2R1p/4n3/1p1p2p1/1Rq1kpN1/rn1N3K/3PP3/6B1 w - - 0 1)

Schmitt, Peter Philipp

Schach-Echo, 1933

2b1Q3/1Bp2R1p/4n3/1p1p2p1/1Rq1kpN1/rn1N3K/3PP3/6B1

#2

10 + 12

14868 Pirnie Collection 2013
3713 Snap 2024

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4
      • 2.Sdf2#
      • 2.Sgf2#
    • 1...Bxb7
      • 2.Qxe6#
    • 1...Sd4
      • 2.Sf2#
  • Tries
    • 1.Be3?
      • threat
        • 2.Sdf2#
        • 2.Sgf2#
      • 1...Sxd2
        • 2.Sdf2#
        • 2.Sc5#
      • 1...fxe3!
    • 1.Bc5?
      • threat
        • 2.Sdf2#
        • 2.Sgf2#
      • 1...Sxd2
        • 2.Sf2#
      • 1...Sa1
        • 2.Sf2#
      • 1...Sc1
        • 2.Sf2#
      • 1...Sd4
        • 2.Sf2#
      • 1...Sa5
        • 2.Sf2#
      • 1...Sxc5!
    • 1.Rxc4+?
      • 1...Sd4
        • 2.Sf2#
        • 2.Rxd4#
      • 1...bxc4!
    • 1.Qh8?
      • threat
        • 2.Sdf2#
        • 2.Sgf2#
        • 2.Qe5#
        • 2.Qxh7#
      • 1...Sxd2
        • 2.Qe5#
        • 2.Qxh7#
      • 1...Sa1
        • 2.Sf2#
        • 2.Qe5#
        • 2.Qxh7#
      • 1...Sc1
        • 2.Sf2#
        • 2.Qe5#
        • 2.Qxh7#
      • 1...Sbd4
        • 2.Sf2#
        • 2.Qe5#
      • 1...Sa5
        • 2.Sf2#
        • 2.Qe5#
        • 2.Qxh7#
      • 1...Sbc5
        • 2.Sf2#
        • 2.Qe5#
        • 2.Qxh7#
      • 1...Sed4
        • 2.Sf2#
        • 2.Qe5#
      • 1...Sec5
        • 2.Sf2#
        • 2.Qe5#
      • 1...Sd8
        • 2.Sf2#
        • 2.Qe5#
      • 1...Sf8
        • 2.Sf2#
        • 2.Qe5#
      • 1...h5
        • 2.Sdf2#
        • 2.Sgf2#
        • 2.Qe5#
        • 2.Qh7#
      • 1...h6
        • 2.Sdf2#
        • 2.Sgf2#
        • 2.Qe5#
        • 2.Qh7#
      • 1...Sg7!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qxd5#
      • 1...Bxb7
        • 2.Qxe6#
      • 1...Sbd4
        • 2.Sf2#
      • 1...Sed4
        • 2.Sf2#

This anticipates 274378(1973)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(l);N_GUARD,N_SPINP(g),XB(H)::QAR2(J),XS(i)
    • S(b);N_SPINQ(c),P_PINS(D),SBLOCK::S(G)
  • Tries
    • Try
      • B(A);
      • Threat
        • DUALS(2)
      • Refutation
        • P(e);XB(A)
    • Try
      • B(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);P_PINS(D),XP(B)::S(G)
        • S(b);P_PINS(D)::S(G)
        • S(b);N_SPINQ(c),P_PINS(D)::S(G)
      • Refutation
        • S(b);P_PINS(D),XB(A)
    • Try
      • R(F);CHECK,XQ(c)
      • Refutation
        • P(f);XR(F)
    • Try
      • Q(J);N_PINS(i)
      • Threat
        • DUALS(4)
      • Refutation
        • S(i);P_PINS(G)
  • Actual
    • Q(J);N_PINS(i)
    • Threat
      • QAB1(J),XP(g)
    • Vars
      • B(l);N_GUARD,XB(H)::QAR2(J),XS(i)
      • S(b);N_SPINQ(c),P_PINS(D),SBLOCK::S(G)
      • S(i);N_SPINQ(c),P_PINS(G),SBLOCK::S(D)
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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).