MESON Chess Problem Database

Problem Display
PID: 287264 (1K5b/8/2NQp3/pp1npp2/7R/2Nk2qR/1Pp2r2/2B4n w - - 0 1)

Weiss, Berthold

Grantham Journal, 1924

(First published on Wed Dec 24 1924)

1K5b/8/2NQp3/pp1npp2/7R/2Nk2qR/1Pp2r2/2B4n

#2

8 + 12

15239 Valois Notebooks 2026

SOLUTION

  • SOUND
  • Sets
    • 1...Qe3
      • 2.Rxe3#
    • 1...a4
      • 2.Sb4#
  • Tries
    • 1.Rxg3+?
      • 1...Rf3
        • 2.Rxf3#
      • 1...Sxg3!
  • Keys
    • 1.Qxe5!
      • threat
        • 2.Rd4#
      • 1...Bxe5+
        • 2.Sxe5#
      • 1...Rf4
        • 2.Qe2#
      • 1...Sf4
        • 2.Qxb5#
      • 1...f4
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • Q(e);OGATE::R1(D),XQ(e)
    • P(f);N_GUARD::S(F)
  • Tries
    • Try
      • R(D);CHECK,XQ(e)
      • Vars
        • R(c);N_GUARD,P_SPINR(c)::R(D),XR(c)
      • Refutation
        • S(a);XR(D)
  • Actual
    • Q(G);N_PINS(h),P_SPINQ(G),XP(i)
    • Threat
      • R1(E)
    • Vars
      • B(l);CHECK,XQ(G)::S(F),XB(l)
      • R(c);N_PINQ(G)::QAB1(G)
      • S(h);N_PINQ(G)::QAB(G),XP(g)
      • P(j);N_PINQ(G)::QAB1(G)
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