MESON Chess Problem Database

Problem Display
PID: 93196 (2K1B3/p7/2NQ4/1kN5/8/8/8/8 w - - 0 1)

Gize, Ernests

Arbejder-Skak, 1960

2K1B3/p7/2NQ4/1kN5/8/8/8/8

#2

5 + 2

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sb3?
      • threat
        • 2.Sca5#
        • 2.Se5#
      • 1...Ka4
        • 2.Scd4#
        • 2.Sca5#
        • 2.Qb4#
      • 1...Ka6
        • 2.Sb4#
        • 2.Scd4#
        • 2.Sca5#
        • 2.Se5#
        • 2.Se7#
        • 2.Sb8#
        • 2.Sd8#
      • 1...Kb6
        • 2.Sb4#
        • 2.Scd4#
        • 2.Sca5#
        • 2.Se5#
        • 2.Se7#
        • 2.Sb8#
        • 2.Sd8#
      • 1...a5
        • 2.Scxa5#
        • 2.Se5#
      • 1...Kc4!
    • 1.Sb7?
      • threat
        • 2.Sca5#
        • 2.Se5#
      • 1...Ka4
        • 2.Sd4#
        • 2.Sca5#
        • 2.Qb4#
      • 1...Ka6
        • 2.Sb4#
        • 2.Sd4#
        • 2.Sca5#
        • 2.Se5#
        • 2.Se7#
        • 2.Sb8#
        • 2.Scd8#
      • 1...Kb6
        • 2.Sb4#
        • 2.Sd4#
        • 2.Sca5#
        • 2.Se5#
        • 2.Se7#
        • 2.Sb8#
        • 2.Scd8#
      • 1...a5
        • 2.Scxa5#
        • 2.Se5#
      • 1...Kc4!
    • 1.Sa5+?
      • 1...Kxa5
        • 2.Sb3#
        • 2.Sb7#
      • 1...Kb4!
    • 1.Se5+?
      • 1...Ka5
        • 2.Sb3#
        • 2.Sb7#
      • 1...Kb4!
    • 1.Qd3+?
      • 1...Kb6
        • 2.Sa4#
      • 1...Kxc5!
    • 1.Qd4?
      • threat
        • 2.Qb4#
      • 1...Kb6
        • 2.Qb4#
      • 1...a5!
  • Keys
    • 1.Sa4!
      • 1...Kxa4
        • 2.Qb4#
      • 1...Kc4
        • 2.Sa5#
      • 1...Ka6
        • 2.Qd3#
      • 1...a5
        • 2.Se5#
      • 1...a6
        • 2.Qb4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(A);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(A);
      • Threat
        • DUALS(2)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT::S(A)
      • Refutation
        • K(a);P-FLIGHT,XS(A)
    • Try
      • Q(C);
      • Threat
        • QAR1(C)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • P(b);
  • Actual
    • S(A);
    • Vars
      • K(a);S_FLIGHT,XS(A)::QAR1(C)
      • K(a);S_FLIGHT::S(B)
      • K(a);S_FLIGHT::QAB(C)
      • P(b);SBLOCK::B(E)+S(B)
      • P(b);SBLOCK::QAR1(C)
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