MESON Chess Problem Database

Problem Display
PID: 175166 (8/3p4/3K4/3B4/8/3k1p2/5P2/2R1B3 w - - 0 1)

Dobbs, J

American Chess World, 1902

8/3p4/3K4/3B4/8/3k1p2/5P2/2R1B3

#2

5 + 3

5454 Near Snap 2018
6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Ke2
      • 2.Bc4#
    • 1...Kd4
      • 2.Rd1#
  • Tries
    • 1.Kc5?
      • 1...Ke2
        • 2.Bc4#
      • 1...d6+!
    • 1.Ke5?
      • threat
        • 2.Bc4#
      • 1...Ke2
        • 2.Bc4#
      • 1...d6+!
    • 1.Kxd7?
      • 1...Ke2
        • 2.Bc4#
      • 1...Kd4!
    • 1.Bb4?
      • 1...Kd4
        • 2.Rd1#
      • 1...Ke2!
    • 1.Ba5?
      • 1...Kd4
        • 2.Rd1#
      • 1...Ke2!
    • 1.Bb7?
      • 1...Ke2
        • 2.Ba6#
      • 1...Kd4!
    • 1.Ra1?
      • 1...Ke2
        • 2.Bc4#
      • 1...Kd4
        • 2.Rd1#
      • 1...Kc2!
  • Keys
    • 1.Rb1!
      • 1...Kc2
        • 2.Be4#
      • 1...Ke2
        • 2.Bc4#
      • 1...Kd4
        • 2.Rd1#

Anticipated by 1953(1859), 4775(1891), 234958(1894), 120937(1898), 57017(1900)

This anticipates 31183(1902), 181896(1905), 50715(1907), 184830(1908), 189845(1912), 178324(1915), 193481(1915), 75889(1920), 206553(1925), 206593(1925), 231389(1927), 76533(1933), 76553(1936), 101951(1939), 19270(1943), 76843(1947), 51132(1950), 184308(1950), 51583(1965), 213018(1967), 121122(1980), 240454(1992)

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::B(D)
    • K(a);P-FLIGHT::R(A)
  • Tries
    • Try
      • K(E);S_FLIGHT
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • P(c);CHECK
    • Try
      • K(E);S_FLIGHT
      • Threat
        • B(D)
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • P(c);CHECK
    • Try
      • K(E);P-FLIGHT,XP(c)
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(B);
      • Vars
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(A);
      • Vars
        • K(a);S_FLIGHT::B(D)
        • K(a);P-FLIGHT::R(A)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(A);
    • Vars
      • K(a);S_FLIGHT::B(D)
      • K(a);P-FLIGHT::R(A)
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