MESON Chess Problem Database

Problem Display
PID: 256581 (8/6K1/Q3N3/4p3/4k3/4P2P/7P/4R3 w - - 0 1)

Kosek, Wojtech

Wiener Schachzeitung, 1901

8/6K1/Q3N3/4p3/4k3/4P2P/7P/4R3

#2

7 + 2

15601 Albrecht-Leiss-Degener Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Kd5
      • 2.e4#
    • 1...Kf5
      • 2.e4#
  • Tries
    • 1.Kf6?
      • 1...Kd5
        • 2.e4#
      • 1...Kf3!
    • 1.Kg6?
      • 1...Kd5
        • 2.e4#
      • 1...Kf3!
    • 1.Kf7?
      • 1...Kd5
        • 2.e4#
      • 1...Kf5
        • 2.e4#
      • 1...Kf3!
    • 1.Sd4?
      • 1...Kd5
        • 2.Qc6#
      • 1...exd4!
    • 1.Sc5+?
      • 1...Kf3
        • 2.Qf1#
        • 2.Qe2#
      • 1...Kf5
        • 2.Qf6#
        • 2.Qg6#
      • 1...Kd5!
    • 1.Sg5+?
      • 1...Kf5
        • 2.Qf6#
        • 2.Qg6#
      • 1...Kd5!
    • 1.Sc7?
      • 1...Kf5
        • 2.Qg6#
      • 1...Kf3!
    • 1.Sd8?
      • 1...Kd5
        • 2.Qc6#
      • 1...Kf5
        • 2.Qg6#
      • 1...Kf3!
    • 1.Qe2?
      • 1...Kf5
        • 2.Qg4#
      • 1...Kd5!
    • 1.Qc4+?
      • 1...Kf5
        • 2.Rf1#
        • 2.Qg4#
        • 2.e4#
      • 1...Kf3!
    • 1.Qa2?
      • 1...Kf3
        • 2.Sg5#
      • 1...Kf5
        • 2.e4#
      • 1...Kd3!
    • 1.Qc6+?
      • 1...Kf5
        • 2.Rf1#
        • 2.e4#
      • 1...Kd3!
    • 1.Qd6?
      • 1...Kf5
        • 2.e4#
      • 1...Kf3!
  • Keys
    • 1.Re2!
      • 1...Kf3
        • 2.Sg5#
      • 1...Kd5
        • 2.e4#
      • 1...Kf5
        • 2.e4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);OGATE,S_FLIGHT::P(C)
  • Tries
    • Try
      • K(G);S_FLIGHT
      • Vars
        • K(a);OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(G);P-FLIGHT
      • Vars
        • K(a);OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(G);P-FLIGHT
      • Vars
        • K(a);OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • P(b);XS(F)
    • Try
      • S(F);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(F);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::S(F)
        • K(a);OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(E);
      • Vars
        • K(a);OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::S(F)
      • K(a);OGATE,S_FLIGHT::P(C)
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