MESON Chess Problem Database

Problem Display
PID: 107985 (2B5/4p3/Q3N2B/3n4/3Pk3/4N3/1n3R2/6K1 w - - 0 1)

Dimitriescu, I

1st Place, Match: Romania - Ukraine, 1959

2B5/4p3/Q3N2B/3n4/3Pk3/4N3/1n3R2/6K1

#2

8 + 4

3310 2345 Chess Problems 1997
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qb5?
      • 1...Sxe3
        • 2.Rf4#
      • 1...Sc4
        • 2.Qb1#
      • 1...Sd1
        • 2.Qb1#
      • 1...Sd3
        • 2.Qxd5#
      • 1...Sa4
        • 2.Qb1#
      • 1...Sc3
        • 2.Qf5#
      • 1...Sb4
        • 2.Qf5#
      • 1...Sb6
        • 2.Qf5#
      • 1...Sf6
        • 2.Qf5#
      • 1...Sc7
        • 2.Qf5#
      • 1...Sf4!
    • 1.Qb7?
      • 1...Sd1
        • 2.Qb1#
      • 1...Sd3
        • 2.Qxd5#
      • 1...Sa4
        • 2.Qb1#
      • 1...Sc4
        • 2.Qb1#
      • 1...Kd3!
    • 1.Qc6?
      • 1...Kd3
        • 2.Qc2#
      • 1...Sd1
        • 2.Qc2#
      • 1...Sd3
        • 2.Qxd5#
      • 1...Sa4
        • 2.Qc2#
      • 1...Sc4!
  • Keys
    • 1.Qe2!
      • 1...Sxe3
        • 2.Bb7#
      • 1...Sd1
        • 2.Qc2#
      • 1...Sd3
        • 2.Qf3#
      • 1...Sa4
        • 2.Qc2#
      • 1...Sc4
        • 2.Qc2#
      • 1...Sc3
        • 2.Rf4#
      • 1...Sb4
        • 2.Rf4#
      • 1...Sf4
        • 2.Rxf4#
      • 1...Sb6
        • 2.Rf4#
      • 1...Sf6
        • 2.Rf4#
      • 1...Sc7
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(E);
      • Vars
        • S(c);N_GUARD,SBLOCK,XS(C)::R1(B)
        • S(a);OGATE::QAB(E)
        • S(a);SBLOCK::QAB1(E),XS(c)
        • S(c);OGATE::QAB1(E)
      • Refutation
        • S(c);
    • Try
      • Q(E);P_PINS(c)
      • Vars
        • S(a);OGATE::QAB(E)
        • S(a);SBLOCK::QAB1(E),XS(c)
      • Refutation
        • K(b);N_SPINS(c),S_FLIGHT
    • Try
      • Q(E);P_PINS(c)
      • Vars
        • K(b);N_SPINS(c),S_FLIGHT::QAB1(E)
        • S(a);N_GUARD::QAB(E)
        • S(a);SBLOCK::QAB1(E),XS(c)
      • Refutation
        • S(a);
  • Actual
    • Q(E);
    • Vars
      • S(c);OGATEB,P_SPINS(c),XS(C)::B(H)
      • S(a);N_GUARD::QAB(E)
      • S(a);SBLOCK::QAB1(E)
      • S(c);N_GUARD::R1(B)
      • S(c);N_GUARD::R1(B),XS(c)
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