MESON Chess Problem Database

Problem Display
PID: 83953 (2nKR3/4p3/4k1B1/8/3Q4/8/8/8 w - - 0 1)

Toth, Gyula

Magyar Sakkvilag, 1932

2nKR3/4p3/4k1B1/8/3Q4/8/8/8

#2

4 + 3

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sb6
      • 2.Rxe7#
    • 1...Sd6
      • 2.Rxe7#
    • 1...Sa7
      • 2.Rxe7#
  • Tries
    • 1.Bb1?
      • 1...Sb6
        • 2.Rxe7#
      • 1...Sd6
        • 2.Rxe7#
      • 1...Sa7
        • 2.Rxe7#
      • 1...Kf7!
    • 1.Bc2?
      • 1...Sb6
        • 2.Rxe7#
      • 1...Sd6
        • 2.Rxe7#
      • 1...Sa7
        • 2.Rxe7#
      • 1...Kf7!
    • 1.Bd3?
      • 1...Sb6
        • 2.Rxe7#
      • 1...Sd6
        • 2.Rxe7#
      • 1...Sa7
        • 2.Rxe7#
      • 1...Kf7!
    • 1.Be4?
      • 1...Sb6
        • 2.Rxe7#
      • 1...Sd6
        • 2.Rxe7#
      • 1...Sa7
        • 2.Rxe7#
      • 1...Kf7!
    • 1.Bh7?
      • 1...Sb6
        • 2.Rxe7#
      • 1...Sd6
        • 2.Rxe7#
      • 1...Sa7
        • 2.Rxe7#
      • 1...Kf7!
  • Keys
    • 1.Kc7!
      • 1...Sb6
        • 2.Qd6#
      • 1...Sd6
        • 2.Qxd6#
      • 1...Sa7
        • 2.Qd6#

This is a version of 83943

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::R1(D),XP(b)
  • Tries
    • Try
      • B(B);
      • Vars
        • S(c);N_GUARD::R1(D),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • B(B);
      • Vars
        • S(c);N_GUARD::R1(D),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • B(B);
      • Vars
        • S(c);N_GUARD::R1(D),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • B(B);
      • Vars
        • S(c);N_GUARD::R1(D),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
    • Try
      • B(B);
      • Vars
        • S(c);N_GUARD::R1(D),XP(b)
      • Refutation
        • K(a);N_SPINP(b),S_FLIGHT
  • Actual
    • K(C);S_FLIGHT
    • Vars
      • S(c);N_GUARD::QAR1(A)
      • S(c);N_GUARD::QAR1(A),XS(c)
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