MESON Chess Problem Database

Problem Display
PID: 102768 (6N1/3Q4/1N2r3/5kpP/p2p1np1/K2P2B1/8/8 w - - 0 1)

von Wardener, Friedrich Freiherr

Revue d'Echecs, 1902

6N1/3Q4/1N2r3/5kpP/p2p1np1/K2P2B1/8/8

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qd5#
  • Tries
    • 1.Sc4?
      • 1...Sxd3
        • 2.Sd6#
      • 1...Se2
        • 2.Sd6#
      • 1...Sg2
        • 2.Sd6#
      • 1...Sh3
        • 2.Sd6#
      • 1...Sd5
        • 2.Sd6#
      • 1...Sg6
        • 2.Sd6#
      • 1...Sxh5!
    • 1.Qd5+?
      • 1...Re5
        • 2.Qf7#
      • 1...Sxd5!
    • 1.Qf7+?
      • 1...Rf6
        • 2.Qxf6#
      • 1...Ke5!
  • Keys
    • 1.Sc8!
      • 1...Ke5
        • 2.Qb5#
      • 1...Sxd3
        • 2.Sd6#
      • 1...Sxh5
        • 2.Sce7#
      • 1...Se2
        • 2.Sd6#
        • 2.Sce7#
      • 1...Sg2
        • 2.Sd6#
        • 2.Sce7#
      • 1...Sh3
        • 2.Sd6#
        • 2.Sce7#
      • 1...Sd5
        • 2.Sd6#
      • 1...Sg6
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • K(e);N_SPINR(g),P-FLIGHT,P_SPINS(c)::QAR1(F)
  • Tries
    • Try
      • S(E);
      • Vars
        • S(c);XP(B)::S(E)
        • S(c);::S(E)
      • Refutation
        • S(c);XP(D)
    • Try
      • Q(F);CHECK,N_PINR(g)
      • Vars
        • R(g);OGATE,P_SPINR(g),SBLOCK::QAR2(F)
      • Refutation
        • S(c);XQ(F)
    • Try
      • Q(F);CHECK,N_PINR(g)
      • Vars
        • R(g);N_GUARD,P_SPINR(g)::QAR1(F),XR(g)
      • Refutation
        • K(e);P-FLIGHT,P_SPINS(c)
  • Actual
    • S(E);
    • Vars
      • K(e);N_SPINR(g),P-FLIGHT,P_SPINS(c)::QAR(F)
      • S(c);XP(B)::S(E)
      • S(c);XP(D)::S(E)
      • S(c);::S(E)
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