MESON Chess Problem Database

Problem Display
PID: 184308 (8/p7/B2K4/7N/4k3/6R1/3P4/8 w - - 0 1)

des Marands, Henri

Echec et Mat, 1950

8/p7/B2K4/7N/4k3/6R1/3P4/8

#2

5 + 2

78 Bulletin Ouvrier des Echecs 1955
5454 Near Snap 2018
3713 Snap 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Rg4#
    • 1...Kf5
      • 2.Bd3#
  • Tries
    • 1.Sg7?
      • 1...Kd4
        • 2.Rg4#
      • 1...Kf4!
    • 1.Rg1?
      • 1...Kd4
        • 2.Rg4#
      • 1...Kf5
        • 2.Bd3#
      • 1...Kf3!
    • 1.Ra3?
      • 1...Kd4
        • 2.Ra4#
      • 1...Kf5!
    • 1.Rb3?
      • 1...Kd4
        • 2.Rb4#
      • 1...Kf5!
    • 1.Rf3?
      • threat
        • 2.Rf4#
      • 1...Kd4
        • 2.Rf4#
      • 1...Kxf3!
    • 1.Rh3?
      • 1...Kd4
        • 2.Rh4#
      • 1...Kf5!
    • 1.Rg4+?
      • 1...Kf5
        • 2.Bc8#
      • 1...Kf3!
    • 1.Rg5?
      • 1...Kd4
        • 2.Rg4#
      • 1...Kf3!
    • 1.Rg6?
      • 1...Kd4
        • 2.Rg4#
      • 1...Kf5
        • 2.Bd3#
      • 1...Kf3!
    • 1.Rg7?
      • 1...Kd4
        • 2.Rg4#
      • 1...Kf5
        • 2.Bd3#
      • 1...Kf3!
    • 1.Rg8?
      • 1...Kd4
        • 2.Rg4#
      • 1...Kf5
        • 2.Bd3#
      • 1...Kf3!
    • 1.d3+?
      • 1...Kf5
        • 2.Bc8#
      • 1...Kd4!
    • 1.d4?
      • 1...Kf5
        • 2.Bd3#
      • 1...Kxd4!
  • Keys
    • 1.Rg2!
      • 1...Kf3
        • 2.Bb7#
      • 1...Kd4
        • 2.Rg4#
      • 1...Kf5
        • 2.Bd3#

Anticipated by 1953(1859), 4775(1891), 234958(1894), 120937(1898), 57017(1900), 175166(1902), 31183(1902), 181896(1905), 50715(1907), 184830(1908), 189845(1912), 193481(1915), 178324(1915), 75889(1920), 206553(1925), 206593(1925), 231389(1927), 76533(1933), 76553(1936), 101951(1939), 19270(1943), 76843(1947)

This anticipates 51132(1950), 51583(1965), 213018(1967), 121122(1980), 240454(1992)

This is after

After G. Martin.

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT::R(B)
    • K(a);S_FLIGHT::B(D)
  • Tries
    • Try
      • S(C);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Threat
        • R1(B)
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT,XR(B)
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);CHECK
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(a);P-FLIGHT::R(B)
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(A);CHECK
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • P(A);
      • Vars
        • K(a);S_FLIGHT::B(D)
      • Refutation
        • K(a);P-FLIGHT,XP(A)
  • Actual
    • R(B);
    • Vars
      • K(a);S_FLIGHT::B(D)
      • K(a);P-FLIGHT::R(B)
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