MESON Chess Problem Database

Problem Display
PID: 17378 (5RKb/5n2/3pN1pr/2Q3rp/b2p2PB/Rq2kP2/1N1p4/3B4 w - - 0 1)

Hassberg, Eric Manfred

HM., Het Belgisch Schaakbord (L'Echiquier Belge), 1946

5RKb/5n2/3pN1pr/2Q3rp/b2p2PB/Rq2kP2/1N1p4/3B4

#2

10 + 12

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Rxc3#
    • 1...Qd3
      • 2.Sc4#
      • 2.Rxd3#
    • 1...Re5
      • 2.Qxd4#
    • 1...Bc6
      • 2.Rxb3#
    • 1...Bd7
      • 2.Rxb3#
    • 1...Be8
      • 2.Rxb3#
    • 1...Se5
      • 2.Qxd4#
    • 1...Sd8
      • 2.Qxg5#
  • Tries
    • 1.Qc4?
      • threat
        • 2.Qe2#
      • 1...Qd3
        • 2.Rxd3#
        • 2.Qxd3#
      • 1...d3
        • 2.Qe4#
        • 2.Qf4#
      • 1...Bb5!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Sg2#
      • 1...Se5+
        • 2.Sd5#
      • 1...Sd8+
        • 2.Sc4#
      • 1...Kxf4
        • 2.Qxg5#
      • 1...Rxg4
        • 2.Sd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 5
  • Sets
    • Q(b);OGATE::R(C),XQ(b)
    • R(f);S_CUTB(l)::QAB1(G),XP(e)
    • B(d);N_GUARD::R(C),XQ(b)
    • S(k);P_PINS(H),S_CUTB(l)::QAB1(G),XP(e)
    • S(k);N_GUARD,P_PINS(H)::QAB(G),XR(f)
  • Tries
    • Try
      • Q(G);N_PINP(e)
      • Threat
        • QAR1(G)
      • Refutation
        • B(d);
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • S(k);CHECK,S_CUTR(f)::S(H)
      • S(k);CHECK::S(B)
      • K(c);N_SPINP(e),N_SPINQ(b),OGATEB,P_SPINS(k),S_FLIGHT,XS(H)::QAB1(G),XR(f)
      • R(f);N_GUARD,XP(E)::S(H)
HTML5 logo

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).