MESON Chess Problem Database

Problem Display
PID: 106202 (2n5/3bp3/2P4K/1Nk5/P1pp1N2/5BB1/1Q6/4R3 w - - 0 1)

Potocny, Vojtech

Praca, 1954

2n5/3bp3/2P4K/1Nk5/P1pp1N2/5BB1/1Q6/4R3

#2

9 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Qa3#
    • 1...d3
      • 2.Bf2#
  • Tries
    • 1.Sd3+?
      • 1...cxd3
        • 2.Qxd4#
      • 1...Kb6!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Sb7#
      • 1...Kxd6
        • 2.Se6#
      • 1...Bxc6
        • 2.Se6#
      • 1...Sxd6
        • 2.Re5#
      • 1...exd6
        • 2.Qb5#
      • 1...c3
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 2
  • Sets
    • S(f);SBLOCK::QAB(B)
    • P(b);OGATEB::B(D)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • P(a);XS(F)::QAB1(B),XP(b)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(G);
    • Threat
      • S(G)
    • Vars
      • K(c);S_FLIGHT,XS(G)::B(D)+S(F)
      • B(d);N_GUARD,XP(H)::S(F)
      • S(f);SBLOCK,XS(G)::R(A)
      • P(e);SBLOCK,XS(G)::QAR1(B)
      • P(a);N_GUARD::S(F)
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