MESON Chess Problem Database

Problem Display
PID: 99664 (8/8/8/n7/K7/B7/k1B4p/7R w - - 0 1)

Hoffenreich, Sandor

Magyar Sakkvilag, 1925

8/8/8/n7/K7/B7/k1B4p/7R

#2

4 + 3

6490 yacpdb 2009
5454 Near Snap 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3
      • 2.Bxb3#
    • 1...Sc4
      • 2.Bb3#
    • 1...Sc6
      • 2.Bb3#
    • 1...Sb7
      • 2.Bb3#
  • Tries
    • 1.Kb4?
      • 1...Sb3
        • 2.Bxb3#
      • 1...Sc4
        • 2.Bb3#
      • 1...Sb7
        • 2.Bb3#
      • 1...Sc6+!
    • 1.Bd3?
      • 1...Sc4
        • 2.Bxc4#
      • 1...Sc6
        • 2.Bc4#
      • 1...Sb7
        • 2.Bc4#
      • 1...Sb3!
  • Keys
    • 1.Bd1!
      • 1...Ka1
        • 2.Bb3#
      • 1...Kb1
        • 2.Bb3#
      • 1...Sb3
        • 2.Bxb3#
      • 1...Sc4
        • 2.Bb3#
      • 1...Sc6
        • 2.Bb3#
      • 1...Sb7
        • 2.Bb3#

Anticipated by 202515(1923)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(c);N_GUARD::B(B),XS(c)
    • S(c);N_GUARD::B(B)
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Vars
        • S(c);N_GUARD::B(B),XS(c)
        • S(c);N_GUARD::B(B)
      • Refutation
        • S(c);CHECK
    • Try
      • B(B);
      • Vars
        • S(c);N_GUARD::B(B),XS(c)
        • S(c);N_GUARD::B(B)
      • Refutation
        • S(c);
  • Actual
    • B(B);
    • Vars
      • K(a);P-FLIGHT::R(A)+B(B)
      • K(a);S_FLIGHT::R(A)+B(B)
      • S(c);N_GUARD::B(B),XS(c)
      • S(c);N_GUARD::B(B)
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