MESON Chess Problem Database

Problem Display
PID: 153085 (6N1/5p2/5P2/2KP1kpQ/8/6P1/7p/7B w - - 0 1)

Harley, Brian

Morning Post, 1936

(First published on Sat Sep 12 1936)

6N1/5p2/5P2/2KP1kpQ/8/6P1/7p/7B

#2

7 + 4

15290 Harley Scrapbook 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Qxg5#
  • Tries
    • 1.Sh6+?
      • 1...Ke5
        • 2.Qxg5#
      • 1...Kxf6!
    • 1.Se7+?
      • 1...Ke5
        • 2.Qxg5#
      • 1...Kxf6!
    • 1.Qe2?
      • threat
        • 2.Qe4#
      • 1...Kg6
        • 2.Be4#
      • 1...g4!
    • 1.Qf3+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kg6!
    • 1.Qg4+?
      • 1...Ke5
        • 2.Qe4#
        • 2.Qxg5#
      • 1...Kg6
        • 2.Be4#
      • 1...Kxg4!
    • 1.Qxf7?
      • 1...Ke5
        • 2.Qe6#
      • 1...g4
        • 2.Qh5#
      • 1...Kg4!
    • 1.Qh3+?
      • 1...Kg6
        • 2.Be4#
      • 1...g4
        • 2.Qh5#
      • 1...Ke5!
    • 1.Qh4?
      • threat
        • 2.Qe4#
      • 1...Ke5
        • 2.Qxg5#
        • 2.Qe4#
      • 1...Kg6
        • 2.Be4#
      • 1...g4
        • 2.Qh5#
      • 1...gxh4!
    • 1.Qh6?
      • 1...Ke5
        • 2.Qxg5#
      • 1...g4
        • 2.Qh5#
      • 1...Kg4!
    • 1.Qh7+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kg4!
    • 1.g4+?
      • 1...Ke5
        • 2.Qxh2#
        • 2.Qxg5#
      • 1...Kf4!
  • Keys
    • 1.Qxh2!
      • 1...Kg4
        • 2.Sh6#
      • 1...Ke5
        • 2.g4#
      • 1...Kg6
        • 2.Be4#
      • 1...g4
        • 2.Qh5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);P-FLIGHT::QAR2(E),XP(c)
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(E),XP(c)
      • Refutation
        • K(b);N_SPINP(c),P-FLIGHT,XP(F)
    • Try
      • S(G);CHECK
      • Vars
        • K(b);P-FLIGHT::QAR2(E),XP(c)
      • Refutation
        • K(b);N_SPINP(c),P-FLIGHT,XP(F)
    • Try
      • Q(E);N_PINP(c)
      • Threat
        • QAB1(E)
      • Vars
        • K(b);S_FLIGHT::B(A)
      • Refutation
        • P(c);
    • Try
      • Q(E);CHECK,N_PINP(c)
      • Vars
        • K(b);P-FLIGHT::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);CHECK,N_PINP(c)
      • Vars
        • K(b);P_SPINP(c),S_FLIGHT::B(A)
      • Refutation
        • K(b);S_FLIGHT,XQ(E)
    • Try
      • Q(E);N_PINP(c),XP(d)
      • Vars
        • K(b);P-FLIGHT::QAR1(E)
        • P(c);OGATEB::QAR2(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);CHECK,N_PINP(c)
      • Vars
        • K(b);S_FLIGHT::B(A)
        • P(c);OGATEB,P_SPINP(c)::QAR2(E)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(E);N_PINP(c)
      • Threat
        • QAB1(E)
      • Vars
        • K(b);S_FLIGHT::B(A)
        • P(c);OGATEB::QAR2(E)
      • Refutation
        • P(c);XQ(E)
    • Try
      • Q(E);N_PINP(c)
      • Vars
        • K(b);P-FLIGHT::QAR2(E),XP(c)
        • P(c);OGATEB::QAR2(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(E);CHECK,N_PINP(c)
      • Vars
        • K(b);OGATE,P-FLIGHT::QAR1(E)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(B);CHECK
      • Refutation
        • K(b);N_SPINP(c),P-FLIGHT
  • Actual
    • Q(E);N_PINP(c),XP(a)
    • Vars
      • K(b);S_FLIGHT::S(G)
      • K(b);P-FLIGHT::QAB(E)+P(B)
      • K(b);S_FLIGHT::B(A)
      • P(c);OGATEB::QAR2(E)
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