MESON Chess Problem Database

Problem Display
PID: 40884 (Qb6/5Br1/p1P2B2/rp2PpN1/1PPk1P2/1bpp3R/5Rn1/1q1nN1K1 w - - 0 1)

Wrobel, Marian

2nd Prize, Berner Tagwacht, 1947

Qb6/5Br1/p1P2B2/rp2PpN1/1PPk1P2/1bpp3R/5Rn1/1q1nN1K1

#2

13 + 13

3105 FIDE Album (1945-1955) 1964
14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qa2
      • 2.Rxd3#
    • 1...Qa1
      • 2.Rxd3#
    • 1...Qc1
      • 2.Rxd3#
    • 1...Qb2
      • 2.Rxd3#
    • 1...Bxe5
      • 2.Bxe5#
      • 2.Qa7#
      • 2.Qd8#
    • 1...Bd6
      • 2.exd6#
    • 1...Ba7
      • 2.Qxa7#
      • 2.Qd8#
    • 1...Se3
      • 2.Sf3#
    • 1...Sxf4
      • 2.Rxf4#
    • 1...c2
      • 2.Rxd3#
  • Tries
    • 1.Se6+?
      • 1...Ke4
        • 2.c7#
      • 1...Kxc4!
  • Keys
    • 1.c7!
      • threat
        • 2.Qd5#
      • 1...Bxc4
        • 2.e6#
      • 1...Sxf4
        • 2.Rxf4#
      • 1...bxc4
        • 2.Se6#
      • 1...c2
        • 2.Rxd3#
      • 1...Sde3
        • 2.Sf3#
      • 1...Sge3
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • Q(a);N_GUARD::R1(D),XP(f)
    • B(m);OGATE::B(K)+P(H),XB(m)
    • S(c);P_PINS(I),SBLOCK::S(A)
    • S(c);OGATE,P_PINS(I),XP(G)::R(C),XS(c)
    • P(e);S_CUTQ(a)::R1(D),XP(f)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • K(g);P-FLIGHT::QAB(M)+P(J)
      • Refutation
        • K(g);P-FLIGHT,XP(F)
  • Actual
    • P(J);
    • Threat
      • QAR1(M)
    • Vars
      • B(d);SBLOCK,XP(F)::B(K)+P(H)
      • S(c);OGATE,P_PINS(I),XP(G)::R(C),XS(c)
      • P(i);SBLOCK,XP(F)::S(I)
      • P(e);S_CUTQ(a)::R1(D),XP(f)
      • S(b);P_PINS(A),SBLOCK::S(I)
      • S(c);P_PINS(I),SBLOCK::S(A)
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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).