MESON Chess Problem Database

Problem Display
PID: 170135 (5R2/7N/p4P2/R2B1k2/6NB/6P1/1p2P3/bK6 w - - 0 1)

Machler, Emil

Tages-Anzeiger, 1981

5R2/7N/p4P2/R2B1k2/6NB/6P1/1p2P3/bK6

#2

10 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kxg4
      • 2.Be6#
    • 1...Kg6
      • 2.Be4#
  • Tries
    • 1.Bg2+?
      • 1...Kxg4
        • 2.Rg5#
        • 2.Rg8#
      • 1...Kg6
        • 2.Be4#
      • 1...Ke6!
    • 1.Bb3+?
      • 1...Kxg4
        • 2.Be6#
      • 1...Kg6
        • 2.Bc2#
      • 1...Ke4!
    • 1.Bf3+?
      • 1...Kg6
        • 2.Be4#
      • 1...Ke6!
    • 1.Bc4+?
      • 1...Kxg4
        • 2.Be6#
      • 1...Kg6
        • 2.Bd3#
      • 1...Ke4!
    • 1.Bc6+?
      • 1...Kxg4
        • 2.Bd7#
      • 1...Kg6
        • 2.Be4#
      • 1...Ke6!
    • 1.Bb7+?
      • 1...Kxg4
        • 2.Bc8#
      • 1...Kg6
        • 2.Be4#
      • 1...Ke6!
    • 1.Bf7+?
      • 1...Kxg4
        • 2.Be6#
      • 1...Ke4!
    • 1.Bg8+?
      • 1...Kxg4
        • 2.Be6#
      • 1...Kg6
        • 2.Rg5#
      • 1...Ke4!
    • 1.Rc5?
      • 1...Kxg4
        • 2.Be6#
      • 1...Kg6
        • 2.Be4#
      • 1...a5!
    • 1.Rf7?
      • 1...Kxg4
        • 2.Be6#
      • 1...Kg6!
    • 1.Ra8?
      • 1...Kxg4
        • 2.Be6#
      • 1...Kg6!
    • 1.Rb8?
      • 1...Kxg4
        • 2.Be6#
      • 1...Kg6!
    • 1.Rc8?
      • 1...Kxg4
        • 2.Be6#
      • 1...Kg6!
    • 1.Rd8?
      • 1...Kxg4
        • 2.Be6#
      • 1...Kg6!
    • 1.Re8?
      • 1...Kxg4
        • 2.Be6#
      • 1...Kg6!
    • 1.Rh8?
      • 1...Kxg4
        • 2.Be6#
      • 1...Kg6!
    • 1.e3?
      • 1...Kg6
        • 2.Be4#
      • 1...Kxg4!
    • 1.f7?
      • 1...Kxg4
        • 2.Be6#
      • 1...Kg6!
  • Keys
    • 1.Sg5!
      • 1...Kxg4
        • 2.Bf3#
      • 1...Kg6
        • 2.Bf7#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(c);S_FLIGHT,XS(D)::B(G)
    • K(c);S_FLIGHT::B(G)
  • Tries
    • Try
      • B(G);CHECK
      • Vars
        • K(c);S_FLIGHT::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(G);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
        • K(c);S_FLIGHT::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(G);CHECK
      • Vars
        • K(c);S_FLIGHT::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(G);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
        • K(c);S_FLIGHT::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(G);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
        • K(c);S_FLIGHT::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(G);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
        • K(c);S_FLIGHT::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(G);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(G);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
        • K(c);OGATE,S_FLIGHT::R1(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(F);
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
        • K(c);S_FLIGHT::B(G)
      • Refutation
        • P(d);
    • Try
      • R(J);
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(J);
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(J);
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(J);
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(J);
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(J);
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(J);
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(B);
      • Vars
        • K(c);S_FLIGHT::B(G)
      • Refutation
        • K(c);S_FLIGHT,XS(D)
    • Try
      • P(H);
      • Vars
        • K(c);S_FLIGHT,XS(D)::B(G)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(I);
    • Vars
      • K(c);S_FLIGHT,XS(D)::B(G)
      • K(c);S_FLIGHT::B(G)
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