MESON Chess Problem Database

Problem Display
PID: 206498 (7n/1p1p2QP/p3BNb1/rRn2pkp/p5pr/4R2p/1BK5/8 w - - 0 1)

Kovacs, Florian Janos

Nepszava, 1925

7n/1p1p2QP/p3BNb1/rRn2pkp/p5pr/4R2p/1BK5/8

#2

8 + 14

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Qh6#
    • 1...f4+
      • 2.Se4#
  • Tries
    • 1.Re5?
      • threat
        • 2.Bc1#
        • 2.Rxf5#
      • 1...Sxe6
        • 2.Rxf5#
      • 1...dxe6
        • 2.Bc1#
      • 1...Sb3
        • 2.Rxf5#
      • 1...Sd3
        • 2.Rxf5#
      • 1...Se4
        • 2.Rxf5#
      • 1...g3
        • 2.Rxf5#
      • 1...Kf4!
  • Keys
    • 1.Bc1!
      • threat
        • 2.Re5#
      • 1...f4+
        • 2.Se4#
      • 1...Kf4
        • 2.Qh6#
      • 1...Sxe6
        • 2.Rxe6#
      • 1...Sb3
        • 2.Rexb3#
      • 1...Sd3
        • 2.Rxd3#
      • 1...Se4
        • 2.Rxe4#
      • 1...g3
        • 2.Rxg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • K(h);N_SPINB(k),S_FLIGHT::QAB(G)
    • P(g);CHECK,N_GUARD,P_SPINS(f),SBLOCK::S(F)
  • Tries
    • Try
      • R(C);P_PINP(g)
      • Threat
        • DUALS(2)
      • Vars
        • S(f);XB(E)::R1(C),XP(g)
        • P(m);XB(E)::B(A)
        • S(f);::R1(C),XP(g)
        • P(c);::R1(C),XP(g)
      • Refutation
        • K(h);N_SPINB(k),N_SPINP(g),S_FLIGHT
  • Actual
    • B(A);
    • Threat
      • B(A)+R(C)
    • Vars
      • P(g);CHECK,N_GUARD,P_SPINS(f),SBLOCK::S(F)
      • K(h);N_SPINB(k),S_FLIGHT::QAB(G)
      • S(f);OGATE,P_SPINP(g),XB(E)::B(A)+R(C),XS(f)
      • S(f);P_SPINP(g)::B(A)+R(C),XS(f)
      • P(c);::B(A)+R(C),DCHECK,XP(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).