MESON Chess Problem Database

Problem Display
PID: 170466 (8/8/8/B7/1N2Q3/8/p7/k2Kn3 w - - 0 1)

L'Hermet, Johann Georg Rudolf

Basler Nachrichten, 1934

8/8/8/B7/1N2Q3/8/p7/k2Kn3

#2

4 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Kc1?
      • threat
        • 2.Qd4#
        • 2.Qe5#
      • 1...Sc2
        • 2.Sxc2#
      • 1...Sf3
        • 2.Sc2#
      • 1...Sd3+!
    • 1.Sc2+?
      • 1...Kb1
        • 2.Qb7#
        • 2.Qb4#
      • 1...Kb2
        • 2.Qb7#
        • 2.Qb4#
      • 1...Sxc2!
    • 1.Qc2?
      • threat
        • 2.Qc1#
        • 2.Qxa2#
      • 1...Sd3
        • 2.Qxa2#
      • 1...Sxc2!
    • 1.Qd5?
      • threat
        • 2.Qxa2#
      • 1...Kb1
        • 2.Qxa2#
      • 1...Kb2!
    • 1.Qe2?
      • threat
        • 2.Qxa2#
      • 1...Kb1
        • 2.Qxa2#
      • 1...Sc2!
    • 1.Qc4?
      • threat
        • 2.Qxa2#
        • 2.Qc1#
      • 1...Kb1
        • 2.Qxa2#
        • 2.Qc1#
      • 1...Sc2
        • 2.Qxa2#
      • 1...Sd3
        • 2.Qxa2#
      • 1...Kb2!
    • 1.Qe6?
      • threat
        • 2.Qxa2#
      • 1...Kb1
        • 2.Qxa2#
      • 1...Kb2!
  • Keys
    • 1.Qb7!
      • 1...Kb1
        • 2.Sc2#
      • 1...Kb2
        • 2.Sc2#
      • 1...Sc2
        • 2.Sxc2#
      • 1...Sg2
        • 2.Sc2#
      • 1...Sd3
        • 2.Sc2#
      • 1...Sf3
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(b);N_GUARD::S(B),XS(b)
        • S(b);N_GUARD::S(B)
      • Refutation
        • S(b);CHECK
    • Try
      • S(B);CHECK
      • Refutation
        • S(b);XS(B)
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::QAR1(C),XP(c)
      • Refutation
        • S(b);XQ(C)
    • Try
      • Q(C);
      • Threat
        • QAR1(C),XP(c)
      • Vars
        • K(a);P-FLIGHT::QAB1(C),XP(c)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAR1(C),XP(c)
      • Vars
        • K(a);P-FLIGHT::QAB1(C),XP(c)
      • Refutation
        • S(b);
    • Try
      • Q(C);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::QAR1(C),XP(c)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAR1(C),XP(c)
      • Vars
        • K(a);P-FLIGHT::QAB1(C),XP(c)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • Q(C);
    • Vars
      • K(a);P-FLIGHT::QAR(C)+S(B)
      • K(a);S_FLIGHT::QAR(C)+S(B)
      • S(b);N_GUARD::S(B),XS(b)
      • S(b);N_GUARD::S(B)
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