MESON Chess Problem Database

Problem Display
PID: 70739 (8/2p1K3/1Pp4R/3k1p2/N3nP2/3PP3/8/5B2 w - - 0 1)

Sivak, Bohuslav

3rd Comm., Podtatranske noviny, 1981

8/2p1K3/1Pp4R/3k1p2/N3nP2/3PP3/8/5B2

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Sc5
      • 2.Sc3#
  • Tries
    • 1.dxe4+?
      • 1...fxe4
        • 2.Rh5#
      • 1...Kxe4!
    • 1.d4?
      • 1...cxb6
        • 2.Sxb6#
      • 1...Sd2
        • 2.Sc3#
      • 1...Sf2
        • 2.Sc3#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Sg3
        • 2.Sc3#
      • 1...Sc5
        • 2.Sc3#
      • 1...Sg5
        • 2.Sc3#
      • 1...Sd6
        • 2.Sc3#
      • 1...Sf6
        • 2.Sc3#
      • 1...c5!
    • 1.bxc7?
      • 1...Sd2
        • 2.Rd6#
      • 1...Sf2
        • 2.Rd6#
      • 1...Sc3
        • 2.Rd6#
      • 1...Sg3
        • 2.Rd6#
      • 1...Sc5
        • 2.Sc3#
        • 2.Sb6#
        • 2.Rd6#
      • 1...Sg5
        • 2.Rd6#
      • 1...Sd6
        • 2.Rxd6#
      • 1...c5
        • 2.Sb6#
      • 1...Sf6!
  • Keys
    • 1.Bg2!
      • 1...cxb6
        • 2.Rd6#
      • 1...c5
        • 2.Sc3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • S(a);N_GUARD,SBLOCK::S(D)
  • Tries
    • Try
      • P(B);CHECK,XS(a)
      • Vars
        • P(c);SBLOCK,XP(B)::R(G)
      • Refutation
        • K(b);S_FLIGHT,XP(B)
    • Try
      • P(B);
      • Vars
        • P(e);XP(F)::S(D),XP(e)
        • S(a);N_GUARD::S(D)
        • S(a);N_GUARD::S(D),XS(a)
      • Refutation
        • P(d);
    • Try
      • P(F);XP(e)
      • Vars
        • S(a);N_GUARD::R1(G)
        • S(a);N_GUARD::R1(G),XS(a)
        • P(d);SBLOCK::S(D)
      • Refutation
        • S(a);
  • Actual
    • B(A);P_PINS(a)
    • Vars
      • P(e);N_GUARD,XP(F)::R1(G)
      • P(d);SBLOCK::S(D)
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