MESON Chess Problem Database

Problem Display
PID: 19452 (6B1/3Rp3/3B1R2/4NP2/4k3/8/3KN1P1/8 w - - 0 1)

Jorgensen, Walther Martinus Johannes

3rd HM., Arbejder-Skak, 1951

6B1/3Rp3/3B1R2/4NP2/4k3/8/3KN1P1/8

#2

9 + 2

15593 170 Skakopgaver (Jorgensen) 1975
3310 2345 Chess Problems 1997
5454 Near Snap 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3+?
      • 1...Kd4
        • 2.Sf3#
        • 2.Sc6#
      • 1...Kf4!
    • 1.Sg3+?
      • 1...Kd4
        • 2.Sf3#
        • 2.Sc6#
      • 1...Kf4!
    • 1.Sc6?
      • threat
        • 2.Sc3#
        • 2.Sg3#
        • 2.Rxe7#
      • 1...exd6
        • 2.Re7#
      • 1...exf6
        • 2.Sg3#
      • 1...e6
        • 2.Sc3#
      • 1...e5!
    • 1.Bc7?
      • threat
        • 2.Bd5#
        • 2.Rd4#
      • 1...e6
        • 2.Rd4#
      • 1...exf6!
    • 1.Bb8?
      • threat
        • 2.Bd5#
        • 2.Rd4#
      • 1...e6
        • 2.Rd4#
      • 1...exf6!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sg5#
        • 2.Rxe7#
      • 1...exd6
        • 2.Re7#
      • 1...exf6
        • 2.Sg3#
      • 1...e6
        • 2.Sc3#
      • 1...e5
        • 2.Sg5#

This anticipates 92659(1952), 251869(1993)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(B);CHECK
      • Refutation
        • K(a);P-FLIGHT
    • Try
      • S(D);
      • Threat
        • DUALS(3)
      • Vars
        • P(b);XB(F)::R(H)
        • P(b);XR(G)::S(B)
        • P(b);::S(B)
      • Refutation
        • P(b);
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::R1(H)
      • Refutation
        • P(b);XR(G)
    • Try
      • B(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);::R1(H)
      • Refutation
        • P(b);XR(G)
  • Actual
    • S(D);
    • Threat
      • DUALS(4)
    • Vars
      • P(b);XB(F)::R(H)
      • P(b);XR(G)::S(B)
      • P(b);::S(B)
      • P(b);::S(D)
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