MESON Chess Problem Database

Problem Display
PID: 65081 (3K2B1/1R1p3p/Pn1N4/R1P1P2Q/1N1krp2/3Pp3/1P2P3/2r4b w - - 0 1)

Burbach, Johannes Jacob

Vleugels, Johan Hubert

5th Prize, Probleemblad, 1988

3K2B1/1R1p3p/Pn1N4/R1P1P2Q/1N1krp2/3Pp3/1P2P3/2r4b

#2

13 + 9

5159 FIDE Album (1986-1988) (Annexe) 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sc2#
    • 1...Rb1
      • 2.Sc2#
    • 1...Rd1
      • 2.Sc2#
    • 1...Re1
      • 2.Sc2#
    • 1...Rf1
      • 2.Sc2#
    • 1...Rg1
      • 2.Sc2#
    • 1...Rc2
      • 2.Sxc2#
  • Tries
    • 1.c6?
      • threat
        • 2.Sf5#
      • 1...Rxe5
        • 2.Qxe5#
      • 1...Sd5
        • 2.Rxd5#
      • 1...Rc5!
    • 1.e6?
      • threat
        • 2.Sb5#
      • 1...Rxc5
        • 2.Qxc5#
      • 1...Sd5
        • 2.Qxd5#
      • 1...Re5!
  • Keys
    • 1.Rxd7!
      • threat
        • 2.Sc6#
      • 1...Rxc5
        • 2.Sb5#
      • 1...Rxe5
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::S(D)
    • R(a);N_GUARD::S(D),XR(a)
  • Tries
    • Try
      • P(F);
      • Threat
        • S(J)
      • Vars
        • R(e);OGATE,XP(G)::QAB1(H),XR(e)
        • S(g);N_GUARD::R1(E),XS(g)
      • Refutation
        • R(a);
    • Try
      • P(G);
      • Threat
        • S(J)
      • Vars
        • R(a);OGATE,XP(F)::QAB1(H),XR(a)
        • S(g);N_GUARD::QAR1(H),XS(g)
      • Refutation
        • R(e);
  • Actual
    • R(K);XP(h)
    • Threat
      • S(D)
    • Vars
      • R(a);SBLOCK,XP(F)::R(K)+S(J),DCHECK
      • R(e);SBLOCK,XP(G)::R(K)+S(J),DCHECK
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