MESON Chess Problem Database

Problem Display
PID: 7308 (8/8/Q7/3p1N2/1kN1B3/8/K7/8 w - - 0 1)

Markovtsy, Vassyl Yuriovich

1st Comm., Probleemblad, 1999

8/8/Q7/3p1N2/1kN1B3/8/K7/8

#2

5 + 2

4883 Still More Fun with Chess Miniatures 2002
145 StrateGems 2003
145 StrateGems 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Sfd6?
      • threat
        • 2.Qa3#
        • 2.Qa5#
      • 1...Kc5
        • 2.Qb6#
      • 1...dxc4
        • 2.Qa3#
      • 1...Kc3!
    • 1.Bd3?
      • threat
        • 2.Qa5#
      • 1...Kc3
        • 2.Qa3#
      • 1...Kc5
        • 2.Qb6#
      • 1...dxc4!
    • 1.Bxd5?
      • threat
        • 2.Qa5#
      • 1...Kc5
        • 2.Qa5#
      • 1...Kc3!
    • 1.Qb5+?
      • 1...Kc3
        • 2.Qb3#
      • 1...Kxb5!
    • 1.Qa3+?
      • 1...Kxc4
        • 2.Bd3#
      • 1...Kb5!
    • 1.Qb6+?
      • 1...Kc3
        • 2.Qb3#
      • 1...Ka4
        • 2.Sb2#
        • 2.Bc2#
        • 2.Qa5#
        • 2.Qb3#
      • 1...Kxc4!
  • Keys
    • 1.Scd6!
      • threat
        • 2.Qa3#
      • 1...Kc3
        • 2.Qa5#
      • 1...Kc5
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Threat
        • DUALS(2)
      • Vars
        • K(a);S_FLIGHT::QAB1(E)
        • P(b);XS(B)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(C);
      • Threat
        • QAB1(E)
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
        • K(a);S_FLIGHT::QAB1(E)
      • Refutation
        • P(b);XS(B)
    • Try
      • B(C);XP(b)
      • Threat
        • QAB1(E)
      • Vars
        • K(a);S_FLIGHT::QAR2(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT,XQ(E)
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);P-FLIGHT,XS(B)::B(C)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(E);CHECK
      • Vars
        • K(a);OGATE,S_FLIGHT::QAR1(E)
      • Refutation
        • K(a);P-FLIGHT,XS(B)
  • Actual
    • S(B);
    • Threat
      • QAB1(E)
    • Vars
      • K(a);S_FLIGHT::QAB(E)
      • K(a);S_FLIGHT::QAR1(E)
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