MESON Chess Problem Database

Problem Display
PID: 102675 (8/8/4N3/3PPP2/2RPkPR1/1P5P/4NB2/4K3 w - - 0 1)

Lipton, Michael

Europe Echecs, 1965

8/8/4N3/3PPP2/2RPkPR1/1P5P/4NB2/4K3

#2

13 + 1

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Sc5#
    • 1...Kf3
      • 2.Sg5#
    • 1...Kxd5
      • 2.Sc3#
    • 1...Kxf5
      • 2.Sg3#
  • Tries
    • 1.Kd1?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Kxf5
        • 2.Sg3#
      • 1...Kf3!
    • 1.Kf1?
      • 1...Kf3
        • 2.Sg5#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Kxf5
        • 2.Sg3#
      • 1...Kd3!
    • 1.Kd2?
      • 1...Kxd5
        • 2.Sc3#
      • 1...Kxf5
        • 2.Sg3#
      • 1...Kf3!
    • 1.Sc3+?
      • 1...Kf3
        • 2.Sg5#
        • 2.Rg3#
      • 1...Kxf5
        • 2.Sg7#
        • 2.Rg5#
      • 1...Kd3!
    • 1.Sg3+?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kxd5
        • 2.Sc7#
        • 2.Rc5#
      • 1...Kf3!
    • 1.Sc5+?
      • 1...Kf3
        • 2.Sg1#
        • 2.Rc3#
        • 2.Rg3#
      • 1...Kxf5
        • 2.Sg3#
        • 2.Rg5#
      • 1...Kxd5!
    • 1.Sg5+?
      • 1...Kd3
        • 2.Sc1#
        • 2.Rc3#
        • 2.Rg3#
      • 1...Kxd5
        • 2.Sc3#
        • 2.Rc5#
      • 1...Kxf5!
    • 1.Rc1?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf3
        • 2.Sg5#
      • 1...Kxf5
        • 2.Sg3#
      • 1...Kxd5!
    • 1.Rc3?
      • 1...Kxf5
        • 2.Sg3#
      • 1...Kxd5!
    • 1.Rc5?
      • 1...Kf3
        • 2.Sg5#
      • 1...Kxf5
        • 2.Sg3#
      • 1...Kd3!
    • 1.Rc7?
      • 1...Kf3
        • 2.Sg5#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Kxf5
        • 2.Sg3#
      • 1...Kd3!
    • 1.Rc8?
      • 1...Kf3
        • 2.Sg5#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Kxf5
        • 2.Sg3#
      • 1...Kd3!
    • 1.Rg1?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf3
        • 2.Sg5#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Kxf5!
    • 1.Rg3?
      • 1...Kxd5
        • 2.Sc3#
      • 1...Kxf5!
    • 1.Rg5?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Kf3!
    • 1.Rg7?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Kxf5
        • 2.Sg3#
      • 1...Kf3!
    • 1.Rg8?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Kxf5
        • 2.Sg3#
      • 1...Kf3!
    • 1.d6?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf3
        • 2.Sg5#
      • 1...Kd5
        • 2.Sc3#
      • 1...Kxf5!
    • 1.f6?
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf3
        • 2.Sg5#
      • 1...Kf5
        • 2.Sg3#
      • 1...Kxd5!
  • Keys
    • 1.Bg1!
      • 1...Kd3
        • 2.Sc5#
      • 1...Kf3
        • 2.Sg5#
      • 1...Kxd5
        • 2.Sc3#
      • 1...Kxf5
        • 2.Sg3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::S(M)
    • K(a);S_FLIGHT,XP(J)::S(B)
    • K(a);S_FLIGHT,XP(L)::S(B)
  • Tries
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::S(M)
        • K(a);S_FLIGHT,XP(J)::S(B)
        • K(a);S_FLIGHT,XP(L)::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);P-FLIGHT
      • Vars
        • K(a);S_FLIGHT::S(M)
        • K(a);S_FLIGHT,XP(J)::S(B)
        • K(a);S_FLIGHT,XP(L)::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • K(A);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT,XP(J)::S(B)
        • K(a);S_FLIGHT,XP(L)::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(B);CHECK
      • Vars
        • K(a);S_FLIGHT::S(M)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(M);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(J)
    • Try
      • S(M);CHECK
      • Refutation
        • K(a);S_FLIGHT,XP(L)
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT::S(M)
        • K(a);S_FLIGHT,XP(L)::S(B)
      • Refutation
        • K(a);S_FLIGHT,XP(J)
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT,XP(L)::S(B)
      • Refutation
        • K(a);S_FLIGHT,XP(J)
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT::S(M)
        • K(a);S_FLIGHT,XP(L)::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT::S(M)
        • K(a);S_FLIGHT,XP(J)::S(B)
        • K(a);S_FLIGHT,XP(L)::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(a);S_FLIGHT::S(M)
        • K(a);S_FLIGHT,XP(J)::S(B)
        • K(a);S_FLIGHT,XP(L)::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(I);
      • Vars
        • K(a);S_FLIGHT::S(M)
        • K(a);S_FLIGHT,XP(J)::S(B)
      • Refutation
        • K(a);S_FLIGHT,XP(L)
    • Try
      • R(I);
      • Vars
        • K(a);S_FLIGHT,XP(J)::S(B)
      • Refutation
        • K(a);S_FLIGHT,XP(L)
    • Try
      • R(I);
      • Vars
        • K(a);S_FLIGHT::S(M)
        • K(a);S_FLIGHT,XP(J)::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(I);
      • Vars
        • K(a);S_FLIGHT::S(M)
        • K(a);S_FLIGHT,XP(J)::S(B)
        • K(a);S_FLIGHT,XP(L)::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(I);
      • Vars
        • K(a);S_FLIGHT::S(M)
        • K(a);S_FLIGHT,XP(J)::S(B)
        • K(a);S_FLIGHT,XP(L)::S(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(J);
      • Vars
        • K(a);S_FLIGHT::S(M)
        • K(a);S_FLIGHT::S(B)
      • Refutation
        • K(a);S_FLIGHT,XP(L)
    • Try
      • P(L);
      • Vars
        • K(a);S_FLIGHT::S(M)
        • K(a);S_FLIGHT::S(B)
      • Refutation
        • K(a);S_FLIGHT,XP(J)
  • Actual
    • B(C);
    • Vars
      • K(a);S_FLIGHT::S(M)
      • K(a);S_FLIGHT,XP(J)::S(B)
      • K(a);S_FLIGHT,XP(L)::S(B)
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