MESON Chess Problem Database

Problem Display
PID: 109641 (8/7Q/8/8/5pp1/1B3Nk1/8/5K2 w - - 0 1)

Vishkov, Anatoly Ivanovich

Kudesnik, 1992

8/7Q/8/8/5pp1/1B3Nk1/8/5K2

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf3
      • 2.Qd3#
  • Tries
    • 1.Kg1?
      • 1...Kxf3
        • 2.Qd3#
      • 1...gxf3!
    • 1.Ke2?
      • threat
        • 2.Qh2#
      • 1...Kg2
        • 2.Qh2#
      • 1...gxf3+!
    • 1.Sh4?
      • 1...Kh2
        • 2.Sf5#
      • 1...Kh3
        • 2.Sf5#
      • 1...f3!
    • 1.Ba2?
      • 1...Kxf3
        • 2.Qd3#
      • 1...gxf3!
    • 1.Bc2?
      • 1...Kxf3
        • 2.Qd3#
      • 1...gxf3!
    • 1.Ba4?
      • 1...Kxf3
        • 2.Qd3#
      • 1...gxf3!
    • 1.Bc4?
      • 1...Kxf3
        • 2.Qd3#
      • 1...gxf3!
    • 1.Bf7?
      • 1...Kxf3
        • 2.Qd3#
      • 1...gxf3!
    • 1.Bg8?
      • 1...Kxf3
        • 2.Qd3#
      • 1...gxf3!
    • 1.Qc2?
      • threat
        • 2.Qg2#
      • 1...Kxf3
        • 2.Qd3#
      • 1...Kh3
        • 2.Qg2#
        • 2.Qh2#
      • 1...gxf3!
    • 1.Qg6?
      • 1...Kxf3
        • 2.Qd3#
      • 1...Kh3!
  • Keys
    • 1.Be6!
      • 1...Kxf3
        • 2.Qd3#
      • 1...gxf3
        • 2.Qh3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATEB,P-FLIGHT,XS(C)::QAR2(D)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::QAR2(D)
      • Refutation
        • P(c);XS(C)
    • Try
      • K(A);S_FLIGHT
      • Threat
        • QAB1(D)
      • Vars
        • K(a);P-FLIGHT::QAR1(D)
      • Refutation
        • P(c);CHECK,XS(C)
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT::QAR(D)+S(C)
        • K(a);P-FLIGHT::QAR(D)+S(C)
      • Refutation
        • P(b);
    • Try
      • B(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::QAR2(D)
      • Refutation
        • P(c);XS(C)
    • Try
      • B(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::QAR2(D)
      • Refutation
        • P(c);XS(C)
    • Try
      • B(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::QAR2(D)
      • Refutation
        • P(c);XS(C)
    • Try
      • B(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::QAR2(D)
      • Refutation
        • P(c);XS(C)
    • Try
      • B(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::QAR2(D)
      • Refutation
        • P(c);XS(C)
    • Try
      • B(B);
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::QAR2(D)
      • Refutation
        • P(c);XS(C)
    • Try
      • Q(D);
      • Threat
        • QAR1(D)
      • Vars
        • K(a);OGATEB,P-FLIGHT,XS(C)::QAR2(D)
      • Refutation
        • P(c);XS(C)
    • Try
      • Q(D);P_PINP(c)
      • Vars
        • K(a);N_SPINP(c),OGATEB,P-FLIGHT,XS(C)::QAR2(D)
      • Refutation
        • K(a);N_SPINP(c),P-FLIGHT
  • Actual
    • B(B);
    • Vars
      • K(a);OGATEB,P-FLIGHT,XS(C)::QAR2(D)
      • P(c);N_GUARD,SBLOCK,XS(C)::QAR1(D)
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