MESON Chess Problem Database

Problem Display
PID: 195144 (2K1Q3/8/4N3/3k4/4N2R/1p6/1P6/8 w - - 0 1)

Iversen, Iver

Densmore MT (Pittsburgh Gazette-Times), 1918

2K1Q3/8/4N3/3k4/4N2R/1p6/1P6/8

#2

6 + 2

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Kd7?
      • 1...Ke5
        • 2.Qh5#
      • 1...Kc4!
    • 1.Sf4+?
      • 1...Kc4
        • 2.Qa4#
      • 1...Kd4!
    • 1.Rh5+?
      • 1...Kc4
        • 2.Qb5#
      • 1...Kxe4!
    • 1.Qh5+?
      • 1...Kc4
        • 2.Sf2#
      • 1...Kc6
        • 2.Qc5#
      • 1...Kxe6!
    • 1.Qc6+?
      • 1...Ke5
        • 2.Rh5#
      • 1...Kxc6!
    • 1.Qd7+?
      • 1...Kc4
        • 2.Sd2#
        • 2.Sf2#
        • 2.Sc3#
        • 2.Sg3#
        • 2.S4c5#
        • 2.S4g5#
        • 2.Sf6#
      • 1...Ke5!
  • Keys
    • 1.Qg6!
      • 1...Kc4
        • 2.Sc3#
      • 1...Ke5
        • 2.Rh5#
      • 1...Kc6
        • 2.Sc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(b);P-FLIGHT::QAR(F)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(b);S_FLIGHT::QAR2(F)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • R(C);CHECK
      • Vars
        • K(b);S_FLIGHT::QAB1(F)
      • Refutation
        • K(b);S_FLIGHT,XS(B)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);S_FLIGHT::R(C)+S(B)
        • K(b);OGATE,S_FLIGHT::QAR1(F)
      • Refutation
        • K(b);S_FLIGHT,XS(D)
    • Try
      • Q(F);CHECK
      • Vars
        • K(b);P-FLIGHT::R(C)
      • Refutation
        • K(b);S_FLIGHT,XQ(F)
    • Try
      • Q(F);CHECK
      • Refutation
        • K(b);P-FLIGHT
  • Actual
    • Q(F);
    • Vars
      • K(b);S_FLIGHT::R(C)+S(B)
      • K(b);P-FLIGHT::R(C)
      • K(b);S_FLIGHT::QAR(F)+S(D)
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