MESON Chess Problem Database

Problem Display
PID: 68039 (8/3B4/nK1p2n1/1p1k1p2/3p4/R1PPP2R/N5NB/8 w - - 0 1)

Jarolin, Ivan

Pravda, 1976

8/3B4/nK1p2n1/1p1k1p2/3p4/R1PPP2R/N5NB/8

#2

10 + 7

5865 Czech Album (1976-1978) 1983

SOLUTION

  • SOUND
  • Sets
    • 1...Sb4
      • 2.Sxb4#
    • 1...Sc5
      • 2.Sb4#
    • 1...Sc7
      • 2.Sb4#
    • 1...Sb8
      • 2.Sb4#
    • 1...Se5
      • 2.Sf4#
    • 1...dxc3
      • 2.Sxc3#
    • 1...dxe3
      • 2.Sxe3#
    • 1...b4
      • 2.c4#
  • Tries
    • 1.Bxf5?
      • threat
        • 2.e4#
      • 1...dxc3
        • 2.Sxc3#
      • 1...dxe3
        • 2.Sxe3#
      • 1...Sc5
        • 2.Sb4#
      • 1...Sf4!
  • Keys
    • 1.Rh5!
      • threat
        • 2.e4#
      • 1...dxc3
        • 2.Sxc3#
      • 1...dxe3
        • 2.Sxe3#
      • 1...Sf4
        • 2.Rxf5#
      • 1...Sc5
        • 2.Sb4#
      • 1...Se5
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • S(e);N_GUARD::S(A),XS(e)
    • S(e);N_GUARD::S(A)
    • S(g);N_GUARD,SBLOCK::S(B)
    • P(a);XP(E)::S(A),XP(a)
    • P(a);XP(G)::S(B),XP(a)
    • P(b);N_GUARD::P(E)
  • Tries
    • Try
      • B(J);XP(d)
      • Threat
        • P(G)
      • Vars
        • P(a);XP(E)::S(A),XP(a)
        • P(a);XP(G)::S(B),XP(a)
        • S(e);N_GUARD::S(A)
      • Refutation
        • S(g);
  • Actual
    • R(H);P_PINP(d)
    • Threat
      • P(G)
    • Vars
      • P(a);XP(E)::S(A),XP(a)
      • P(a);XP(G)::S(B),XP(a)
      • S(g);N_GUARD::R(H),XP(d)
      • S(e);N_GUARD::S(A)
      • S(g);N_GUARD,N_SPINP(d),SBLOCK::S(B)
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