MESON Chess Problem Database

Problem Display
PID: 107085 (B7/3pN3/1P1P1P1P/N3k2p/1P5P/7Q/8/K7 w - - 0 1)

Gruber, Hans

Augsburger Allgemeine Zeitung, 1977

B7/3pN3/1P1P1P1P/N3k2p/1P5P/7Q/8/K7

#2

11 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4
      • 2.Sg6#
    • 1...Kxd6
      • 2.Sc4#
    • 1...Kxf6
      • 2.Qf5#
  • Tries
    • 1.Kb1?
      • 1...Kf4
        • 2.Sg6#
      • 1...Kxd6
        • 2.Sc4#
      • 1...Kxf6
        • 2.Qf5#
      • 1...Kd4!
    • 1.Ka2?
      • 1...Kf4
        • 2.Sg6#
      • 1...Kxd6
        • 2.Sc4#
      • 1...Kxf6
        • 2.Qf5#
      • 1...Kd4!
    • 1.Sb3?
      • 1...Kf4
        • 2.Sg6#
      • 1...Kxf6
        • 2.Qf5#
      • 1...Kxd6!
    • 1.Sc4+?
      • 1...Kf4
        • 2.Sg6#
        • 2.Qf3#
      • 1...Kxf6
        • 2.Qf5#
      • 1...Kd4!
    • 1.Sd5?
      • 1...Kd4
        • 2.Qe3#
      • 1...Kxd6
        • 2.Sc4#
      • 1...Ke4!
    • 1.Bh1?
      • 1...Kf4
        • 2.Sg6#
      • 1...Kxd6
        • 2.Sc4#
      • 1...Kxf6
        • 2.Qf5#
      • 1...Kd4!
    • 1.Bg2?
      • 1...Kf4
        • 2.Sg6#
      • 1...Kxd6
        • 2.Sc4#
      • 1...Kxf6
        • 2.Qf5#
      • 1...Kd4!
    • 1.Bd5?
      • 1...Kf4
        • 2.Sg6#
      • 1...Kxd6
        • 2.Sc4#
        • 2.Qh2#
        • 2.Qg3#
      • 1...Kxf6
        • 2.Qf5#
        • 2.Qc3#
      • 1...Kd4!
    • 1.Bb7?
      • 1...Kf4
        • 2.Sg6#
      • 1...Kxd6
        • 2.Sc4#
      • 1...Kxf6
        • 2.Qf5#
      • 1...Kd4!
    • 1.Qg4?
      • 1...Kxd6
        • 2.Sc4#
      • 1...Kxf6
        • 2.Qf5#
      • 1...hxg4!
    • 1.Qf5+?
      • 1...Kxd6
        • 2.Sc4#
        • 2.Sb7#
        • 2.Sc8#
        • 2.Qd5#
      • 1...Kd4!
    • 1.Qe3+?
      • 1...Kxd6
        • 2.Sc4#
        • 2.Sb7#
        • 2.Sf5#
        • 2.Sc8#
      • 1...Kxf6!
  • Keys
    • 1.Kb2!
      • 1...Kd4
        • 2.Qc3#
      • 1...Kf4
        • 2.Sg6#
      • 1...Kxd6
        • 2.Sc4#
      • 1...Kxf6
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(J)
    • K(a);S_FLIGHT,XP(G)::S(E)
    • K(a);S_FLIGHT,XP(H)::QAR1(B)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::S(J)
        • K(a);S_FLIGHT,XP(G)::S(E)
        • K(a);S_FLIGHT,XP(H)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::S(J)
        • K(a);S_FLIGHT,XP(G)::S(E)
        • K(a);S_FLIGHT,XP(H)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(E);
      • Vars
        • K(a);S_FLIGHT::S(J)
        • K(a);S_FLIGHT,XP(H)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT,XP(G)
    • Try
      • S(E);CHECK
      • Vars
        • K(a);S_FLIGHT,XP(H)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(J);
      • Vars
        • K(a);S_FLIGHT::QAB1(B)
        • K(a);S_FLIGHT,XP(G)::S(E)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(K);
      • Vars
        • K(a);S_FLIGHT::S(J)
        • K(a);S_FLIGHT,XP(G)::S(E)
        • K(a);S_FLIGHT,XP(H)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(K);
      • Vars
        • K(a);S_FLIGHT::S(J)
        • K(a);S_FLIGHT,XP(G)::S(E)
        • K(a);S_FLIGHT,XP(H)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(K);
      • Vars
        • K(a);S_FLIGHT::S(J)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(K);
      • Vars
        • K(a);S_FLIGHT::S(J)
        • K(a);S_FLIGHT,XP(G)::S(E)
        • K(a);S_FLIGHT,XP(H)::QAR1(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);
      • Vars
        • K(a);S_FLIGHT,XP(G)::S(E)
        • K(a);S_FLIGHT,XP(H)::QAR1(B)
      • Refutation
        • P(b);XQ(B)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(H)
  • Actual
    • K(A);S_FLIGHT
    • Vars
      • K(a);S_FLIGHT::QAB1(B)
      • K(a);S_FLIGHT::S(J)
      • K(a);S_FLIGHT,XP(G)::S(E)
      • K(a);S_FLIGHT,XP(H)::QAR1(B)
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