MESON Chess Problem Database

Problem Display
PID: 17515 (1N3R1K/B7/1Q2pn2/3pk1pP/2P3p1/3r1bP1/1b1N4/1Bn2R2 w - - 0 1)

Fleck, Ferenc

2nd Place, Magasinet, 1947

1N3R1K/B7/1Q2pn2/3pk1pP/2P3p1/3r1bP1/1b1N4/1Bn2R2

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd2
      • 2.Qc7#
    • 1...Ra3
      • 2.Qc7#
    • 1...Rb3
      • 2.Qc7#
    • 1...Rc3
      • 2.Qc7#
    • 1...Re3
      • 2.Qc7#
    • 1...Rd4
      • 2.Qc7#
    • 1...Bd1
      • 2.Qc7#
    • 1...Bh1
      • 2.Qc7#
    • 1...Be2
      • 2.Qc7#
    • 1...Bg2
      • 2.Qc7#
    • 1...Be4
      • 2.Qc7#
    • 1...Se4
      • 2.Sd7#
    • 1...Sxh5
      • 2.Sd7#
      • 2.Qc7#
    • 1...Sd7
      • 2.Sxd7#
      • 2.Qc7#
    • 1...Sh7
      • 2.Sd7#
      • 2.Qc7#
    • 1...Se8
      • 2.Sd7#
    • 1...Sg8
      • 2.Sd7#
      • 2.Qc7#
  • Tries
    • 1.Sd7+?
      • 1...Sxd7
        • 2.Qc7#
      • 1...Kf5!
    • 1.Rxf6?
      • threat
        • 2.Sd7#
        • 2.Qxe6#
      • 1...dxc4
        • 2.Qxe6#
      • 1...Kxf6!
    • 1.Re8?
      • threat
        • 2.Qxe6#
      • 1...Kf5
        • 2.Qxe6#
      • 1...Sxe8!
  • Keys
    • 1.cxd5!
      • threat
        • 2.Qxe6#
      • 1...Kxd5
        • 2.Qc5#
      • 1...Kf5
        • 2.Qxe6#
      • 1...Rxd5
        • 2.Sc4#
      • 1...Bxd5
        • 2.Qc7#
      • 1...Sxd5
        • 2.Sd7#
      • 1...exd5
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 13
  • Sets
    • R(c);XS(C)::QAB(G)
    • R(c);::QAB(G)
    • B(d);::QAB(G)
    • S(j);N_GUARD::S(I)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • S(j);XS(I)::QAB(G)
      • Refutation
        • K(g);P-FLIGHT,P_SPINB(d),P_SPINR(c),P_SPINS(j)
    • Try
      • R(J);XS(j)
      • Threat
        • DUALS(2)
      • Vars
        • P(f);XP(E)::QAR1(G),XP(i)
      • Refutation
        • K(g);P_SPINB(d),P_SPINP(i),S_FLIGHT,XR(J)
    • Try
      • R(J);P_PINP(i)
      • Threat
        • QAR1(G),XP(i)
      • Vars
        • K(g);N_SPINP(i),P-FLIGHT,P_SPINB(d),P_SPINR(c)::QAB1(G),XP(i)
      • Refutation
        • S(j);N_SPINP(i),XR(J)
  • Actual
    • P(E);XP(f)
    • Threat
      • QAR1(G),XP(i)
    • Vars
      • K(g);OGATEB,P-FLIGHT,XP(E)::QAR1(G)
      • K(g);P-FLIGHT,P_SPINB(d),P_SPINR(c),P_SPINS(j)::QAB1(G),XP(i)
      • R(c);SBLOCK,XP(E)::S(C)
      • B(d);SBLOCK,XP(E)::QAB(G)
      • S(j);N_GUARD,SBLOCK,XP(E)::S(I)
      • P(i);OGATE,SBLOCK,XP(E)::QAB1(G),XS(j)
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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).