MESON Chess Problem Database

Problem Display
PID: 223077 (8/8/1R6/8/2Nk4/B2PN1P1/3p4/3K4 w - - 0 1)

Herben, JF

Der Tijd, 1886

8/8/1R6/8/2Nk4/B2PN1P1/3p4/3K4

#2

7 + 2

5454 Near Snap 2020
6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sd5?
      • 1...Kxd5
        • 2.Rd6#
      • 1...Kxd3!
    • 1.Bb2+?
      • 1...Kc5
        • 2.d4#
      • 1...Kxd3!
  • Keys
    • 1.Se5!
      • 1...Kc3
        • 2.Bb2#
      • 1...Kxe3
        • 2.Bc5#
      • 1...Kxe5
        • 2.Bb2#

This anticipates 175229(1902), 28887(1974)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);
      • Vars
        • K(b);OGATEB,P-FLIGHT,XS(D)::R1(G)
      • Refutation
        • K(b);P-FLIGHT,XP(C)
    • Try
      • B(B);CHECK
      • Vars
        • K(b);OGATE,S_FLIGHT::P(C)
      • Refutation
        • K(b);P-FLIGHT,XP(C)
  • Actual
    • S(F);
    • Vars
      • K(b);S_FLIGHT::B(B)
      • K(b);S_FLIGHT,XS(D)::B(B)
      • K(b);S_FLIGHT,XS(F)::B(B)
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