MESON Chess Problem Database

Problem Display
PID: 17735 (K5R1/8/7k/4n3/4Q1p1/8/7p/8 w - - 0 1)

Simmonds, R

Chess World (The), 1949

K5R1/8/7k/4n3/4Q1p1/8/7p/8

#2

3 + 4

2838 Fun with Chess Miniatures 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Kh5
      • 2.Qh7#
    • 1...Sd3
      • 2.Qg6#
    • 1...Sf3
      • 2.Qg6#
    • 1...Sc4
      • 2.Qg6#
    • 1...Sc6
      • 2.Qg6#
    • 1...Sg6
      • 2.Qxg6#
    • 1...Sd7
      • 2.Qg6#
    • 1...Sf7
      • 2.Qg6#
    • 1...h1Q
      • 2.Qxh1#
    • 1...h1S
      • 2.Qxh1#
    • 1...h1B
      • 2.Qxh1#
    • 1...h1R
      • 2.Qxh1#
    • 1...g3
      • 2.Qh4#
  • Tries
    • 1.Ka7?
      • 1...Kh5
        • 2.Qh7#
      • 1...Sg6
        • 2.Qxg6#
      • 1...h1Q
        • 2.Qxh1#
      • 1...h1S
        • 2.Qxh1#
      • 1...h1B
        • 2.Qxh1#
      • 1...h1R
        • 2.Qxh1#
      • 1...Sd3
        • 2.Qg6#
      • 1...Sf3
        • 2.Qg6#
      • 1...Sc4
        • 2.Qg6#
      • 1...Sd7
        • 2.Qg6#
      • 1...Sf7
        • 2.Qg6#
      • 1...g3
        • 2.Qh4#
      • 1...Sc6+!
    • 1.Qe3+?
      • 1...Kh5
        • 2.Qg5#
      • 1...Kh7!
    • 1.Qf4+?
      • 1...Kh5
        • 2.Qxh2#
        • 2.Qg5#
      • 1...Kh7!
  • Keys
    • 1.Kb7!
      • 1...Kh5
        • 2.Qh7#
      • 1...Sg6
        • 2.Qxg6#
      • 1...h1Q
        • 2.Qxh1#
      • 1...h1S
        • 2.Qxh1#
      • 1...h1B
        • 2.Qxh1#
      • 1...h1R
        • 2.Qxh1#
      • 1...Sd3
        • 2.Qg6#
      • 1...Sf3
        • 2.Qg6#
      • 1...Sc4
        • 2.Qg6#
      • 1...Sc6
        • 2.Qg6#
      • 1...Sd7
        • 2.Qg6#
      • 1...Sf7
        • 2.Qg6#
      • 1...g3
        • 2.Qh4#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(d);P-FLIGHT::QAR2(A)
    • S(c);N_GUARD::QAR1(A)
    • S(c);N_GUARD::QAR1(A),XS(c)
    • P(a);OGATEB,P_PINQ(A)::QAR(A),XQ(a)
    • P(a);OGATEB::QAR(A),XS(a)
    • P(a);OGATEB,P_PINQ(A)::QAR(A),XB(a)
    • P(a);OGATEB::QAR(A),XR(a)
    • P(b);OGATE::QAR2(A)
  • Tries
    • Try
      • K(B);P-FLIGHT
      • Vars
        • K(d);P-FLIGHT::QAR2(A)
        • S(c);N_GUARD::QAR1(A),XS(c)
        • P(a);OGATEB::QAR(A),XQ(a)
        • P(a);OGATEB::QAR(A),XS(a)
        • P(a);OGATEB::QAR(A),XB(a)
        • P(a);OGATEB::QAR(A),XR(a)
        • S(c);N_GUARD::QAR1(A)
        • P(b);OGATE::QAR2(A)
      • Refutation
        • S(c);CHECK
    • Try
      • Q(A);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(A)
      • Refutation
        • K(d);P-FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • K(B);S_FLIGHT
    • Vars
      • K(d);P-FLIGHT::QAR2(A)
      • S(c);N_GUARD::QAR1(A),XS(c)
      • P(a);OGATEB,P_PINQ(A)::QAR(A),XQ(a)
      • P(a);OGATEB::QAR(A),XS(a)
      • P(a);OGATEB,P_PINQ(A)::QAR(A),XB(a)
      • P(a);OGATEB::QAR(A),XR(a)
      • S(c);N_GUARD::QAR1(A)
      • P(b);OGATE::QAR2(A)
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