MESON Chess Problem Database

Problem Display
PID: 265484 (k7/8/2P5/1N1pB3/p7/Pn6/1Q3KB1/8 w - - 0 1)

Zheltukhov, Viktor Ivanovich

Zadachi i Etyudi, 2010

k7/8/2P5/1N1pB3/p7/Pn6/1Q3KB1/8

#2

7 + 4

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.c7#
  • Tries
    • 1.Sd4?
      • 1...Sxd4
        • 2.Qb7#
        • 2.Qb8#
      • 1...Sa1
        • 2.Qb7#
        • 2.Qb8#
      • 1...Sc1
        • 2.Qb7#
        • 2.Qb8#
      • 1...Sd2
        • 2.Qb7#
        • 2.Qb8#
      • 1...Sa5
        • 2.Qb8#
      • 1...Sc5
        • 2.Qb8#
      • 1...Ka7!
    • 1.Bh2?
      • threat
        • 2.Qh8#
      • 1...d4
        • 2.c7#
      • 1...Sd4!
    • 1.Bg3?
      • threat
        • 2.Qh8#
      • 1...d4
        • 2.c7#
      • 1...Sd4!
    • 1.Bf4?
      • threat
        • 2.Qh8#
      • 1...d4
        • 2.c7#
      • 1...Sd4!
    • 1.Bd6?
      • threat
        • 2.Qh8#
      • 1...d4
        • 2.c7#
      • 1...Sd4!
    • 1.Qc3?
      • 1...Sa1
        • 2.Qa5#
      • 1...Sc1
        • 2.Qa5#
      • 1...Sd2
        • 2.Qa5#
      • 1...Sd4
        • 2.Qa5#
      • 1...Sa5
        • 2.Qxa5#
      • 1...d4
        • 2.c7#
      • 1...Sc5!
    • 1.c7?
      • threat
        • 2.Bxd5#
        • 2.c8Q#
      • 1...Sd4
        • 2.c8Q#
      • 1...Sa5
        • 2.c8Q#
      • 1...Sc5
        • 2.c8Q#
      • 1...Kb7!
  • Keys
    • 1.Bb8!
      • 1...Kxb8
        • 2.Qh8#
      • 1...Sa1
        • 2.Sc7#
      • 1...Sc1
        • 2.Sc7#
      • 1...Sd2
        • 2.Sc7#
      • 1...Sd4
        • 2.Sc7#
      • 1...Sa5
        • 2.Sc7#
      • 1...Sc5
        • 2.Sc7#
      • 1...d4
        • 2.c7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • P(c);::B(C)+P(G)
  • Tries
    • Try
      • S(E);
      • Vars
        • S(a);OGATE::QAR1(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • B(F);
      • Threat
        • QAB1(A)
      • Vars
        • P(c);::B(C)+P(G)
      • Refutation
        • S(a);
    • Try
      • B(F);
      • Threat
        • QAB1(A)
      • Vars
        • P(c);::B(C)+P(G)
      • Refutation
        • S(a);
    • Try
      • B(F);
      • Threat
        • QAB1(A)
      • Vars
        • P(c);::B(C)+P(G)
      • Refutation
        • S(a);
    • Try
      • B(F);
      • Threat
        • QAB1(A)
      • Vars
        • P(c);::B(C)+P(G)
      • Refutation
        • S(a);
    • Try
      • Q(A);
      • Vars
        • S(a);N_GUARD::QAR(A)
        • S(a);N_GUARD::QAR(A),XS(a)
        • P(c);::B(C)+P(G)
      • Refutation
        • S(a);
    • Try
      • P(G);P_PINP(c)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::P=Q
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • B(F);
    • Vars
      • K(d);OGATEB,P-FLIGHT,XB(F)::QAR(A)
      • S(a);::S(E)
      • P(c);::B(C)+P(G)
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