MESON Chess Problem Database

Problem Display
PID: 67389 (4K1Rb/3PP3/R1N5/2p2knB/1P5p/6Q1/4NPPn/B1q5 w - - 0 1)

Krizovensky, Marian

1st HM., Vychodoslovenske noviny, 1984

4K1Rb/3PP3/R1N5/2p2knB/1P5p/6Q1/4NPPn/B1q5

#2

13 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Be5
      • 2.Qxe5#
    • 1...Sf1
      • 2.Qg4#
    • 1...Shf3
      • 2.Qg4#
    • 1...Sg4
      • 2.Qxg4#
    • 1...Sgf3
      • 2.Qg6#
    • 1...Sh3
      • 2.Qg6#
    • 1...Se4
      • 2.Qg6#
    • 1...Se6
      • 2.Bg6#
      • 2.Qd3#
      • 2.Qg6#
    • 1...Sf7
      • 2.Qg6#
    • 1...Sh7
      • 2.Qg6#
  • Tries
    • 1.Scd4+?
      • 1...Bxd4
        • 2.Bg6#
      • 1...cxd4
        • 2.Bg6#
      • 1...Ke4!
    • 1.Rxg5+?
      • 1...Ke4
        • 2.Bg6#
      • 1...Ke6
        • 2.Scd4#
        • 2.Sa5#
        • 2.Sa7#
        • 2.Sb8#
        • 2.Sd8#
        • 2.Bf7#
        • 2.d8S#
      • 1...Qxg5!
    • 1.Qd6?
      • threat
        • 2.Qg6#
      • 1...Ke4
        • 2.Bg6#
      • 1...Se6
        • 2.Qd3#
      • 1...Bf6!
    • 1.Qd3+?
      • 1...Ke6
        • 2.Sa5#
        • 2.Se5#
        • 2.Sa7#
        • 2.Sb8#
        • 2.Sd8#
        • 2.d8S#
      • 1...Se4!
    • 1.Qxg5+?
      • 1...Ke4
        • 2.Bg6#
      • 1...Ke6
        • 2.Scd4#
        • 2.Sa5#
        • 2.Sa7#
        • 2.Sb8#
        • 2.Sd8#
      • 1...Qxg5!
  • Keys
    • 1.Se5!
      • threat
        • 2.Bg6#
      • 1...Ke4
        • 2.Qd3#
      • 1...Se6
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • B(g);N_GUARD::QAR1(E),XB(g)
    • S(b);N_GUARD::QAB1(E)
    • S(b);N_GUARD::QAB1(E),XS(b)
    • S(f);OGATE::QAB1(E)
    • S(f);OGATE,SBLOCK::QAB1(E)
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • B(g);XS(I)::B(G)
        • P(d);XS(I)::B(G)
      • Refutation
        • K(e);S_FLIGHT
    • Try
      • R(M);CHECK,XS(f)
      • Vars
        • K(e);S_FLIGHT::B(G)
      • Refutation
        • Q(a);XR(M)
    • Try
      • Q(E);
      • Threat
        • QAB1(E)
      • Vars
        • K(e);S_FLIGHT::B(G)
        • S(f);N_GUARD,SBLOCK::QAB(E)
      • Refutation
        • B(g);
    • Try
      • Q(E);CHECK
      • Refutation
        • S(f);P_SPINS(f)
    • Try
      • Q(E);CHECK,XS(f)
      • Vars
        • K(e);S_FLIGHT::B(G)
      • Refutation
        • Q(a);XQ(E)
  • Actual
    • S(I);
    • Threat
      • B(G)
    • Vars
      • K(e);S_FLIGHT::QAB1(E)
      • S(f);OGATE::QAB1(E)
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