MESON Chess Problem Database

Problem Display
PID: 177529 (8/7R/6N1/4Pk2/5B2/8/6K1/7Q w - - 0 1)

Myhre, Gunnar Frode

Postsjakk, 1970

8/7R/6N1/4Pk2/5B2/8/6K1/7Q

#2

6 + 1

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kg4
      • 2.Qh3#
      • 2.Qh5#
    • 1...Kxg6
      • 2.Qb1#
      • 2.Qh5#
  • Tries
    • 1.Kf1?
      • 1...Kg4
        • 2.Qh3#
        • 2.Qh5#
      • 1...Kxg6
        • 2.Qe4#
        • 2.Qh5#
      • 1...Ke6!
    • 1.Kg1?
      • 1...Kg4
        • 2.Qh3#
        • 2.Qh5#
      • 1...Kxg6
        • 2.Qe4#
        • 2.Qh5#
      • 1...Ke6!
    • 1.Kf2?
      • 1...Kg4
        • 2.Qh3#
        • 2.Qh5#
      • 1...Kxg6
        • 2.Qe4#
        • 2.Qb1#
        • 2.Qh5#
      • 1...Ke6!
    • 1.Kf3?
      • 1...Kxg6
        • 2.Qb1#
        • 2.Qh5#
      • 1...Ke6!
    • 1.Kg3?
      • 1...Kxg6
        • 2.Qe4#
        • 2.Qb1#
        • 2.Qh5#
      • 1...Ke6!
    • 1.Kh3?
      • 1...Kxg6
        • 2.Qe4#
        • 2.Qb1#
      • 1...Ke6!
    • 1.Re7?
      • 1...Kg4
        • 2.Qh3#
      • 1...Kxg6
        • 2.Qh7#
      • 1...Ke4!
    • 1.Qb1+?
      • 1...Kg4
        • 2.Rh4#
      • 1...Ke6!
    • 1.Qd1?
      • 1...Ke6
        • 2.Qd7#
      • 1...Kxg6
        • 2.Qc2#
        • 2.Qh5#
        • 2.Qb1#
        • 2.Qd3#
      • 1...Ke4!
    • 1.Qh3+?
      • 1...Kxg6
        • 2.Qd3#
        • 2.Qh5#
      • 1...Ke4!
  • Keys
    • 1.Rd7!
      • 1...Ke4
        • 2.Qb1#
      • 1...Kg4
        • 2.Qh3#
      • 1...Ke6
        • 2.Qh3#
      • 1...Kxg6
        • 2.Qh7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);P-FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(B);S_FLIGHT
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);S_FLIGHT::R1(F)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(a);S_FLIGHT::QAB(A)
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(A)
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