MESON Chess Problem Database

Problem Display
PID: 250243 (3bBB2/2p1rp2/2pk1K2/2p1NP2/2Pq1P2/3R4/3P4/8 w - - 0 1)

Almay, Joszef

Ujsag, 1927

3bBB2/2p1rp2/2pk1K2/2p1NP2/2Pq1P2/3R4/3P4/8

#2

9 + 8

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd3
      • 2.Sxf7#
    • 1...Qd5
      • 2.Sxf7#
  • Tries
    • 1.Bxc6?
      • 1...Qd5
        • 2.Rxd5#
      • 1...Qxd3!
  • Keys
    • 1.Kg7!
      • 1...f6+
        • 2.Sf7#
      • 1...Qxd3
        • 2.Sxf7#
      • 1...Qd5
        • 2.Sxf7#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • Q(a);N_PINS(E),N_SPINQ(a),XR(B)::S(E),XP(g)
    • Q(a);N_PINS(E)::S(E),XP(g)
  • Tries
    • Try
      • B(H);XP(c)
      • Vars
        • Q(a);N_PINS(E),OGATE::R1(B),XQ(a)
      • Refutation
        • Q(a);N_PINS(E),N_SPINQ(a),XR(B)
  • Actual
    • K(G);S_FLIGHT
    • Vars
      • P(g);CHECK,N_PINS(E)::S(E)
      • Q(a);N_PINS(E),N_SPINQ(a),XR(B)::S(E),XP(g)
      • Q(a);N_PINS(E)::S(E),XP(g)
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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).