MESON Chess Problem Database

Problem Display
PID: 287260 (3K4/p3p3/3krp1R/1P6/2P2P2/nn6/3N4/6Q1 w - - 0 1)

Weiss, Berthold

Grantham Journal, 1924

(First published on Sat Dec 13 1924)

3K4/p3p3/3krp1R/1P6/2P2P2/nn6/3N4/6Q1

#2

7 + 7

15239 Valois Notebooks 2026

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Qd4#
    • 1...Sc1
      • 2.Qd4#
    • 1...Sxd2
      • 2.Qd4#
    • 1...Sd4
      • 2.Qxd4#
    • 1...Sa5
      • 2.Qd4#
    • 1...Sc5
      • 2.Qd4#
    • 1...a5
      • 2.Qb6#
    • 1...a6
      • 2.Qb6#
  • Tries
    • 1.Qxa7?
      • threat
        • 2.Qb6#
        • 2.Qc7#
      • 1...Sxb5
        • 2.Qb6#
      • 1...Re1
        • 2.Qb6#
      • 1...Re2
        • 2.Qb6#
      • 1...Re3
        • 2.Qb6#
      • 1...Re4
        • 2.Qb6#
      • 1...Re5
        • 2.Qb6#
      • 1...Sd4
        • 2.Qxd4#
        • 2.Qxa3#
        • 2.Qc7#
      • 1...Sa5
        • 2.Qd4#
        • 2.Qc7#
      • 1...Sxc4!
    • 1.c5+?
      • 1...Sxc5
        • 2.Qd4#
      • 1...Kd5!
  • Keys
    • 1.Qg5!
      • threat
        • 2.Qd5#
      • 1...Sxc4
        • 2.Sxc4#
      • 1...fxg5
        • 2.Se4#
      • 1...Re5
        • 2.Qxe5#
      • 1...f5
        • 2.Qxe7#

There are these versions: 287261

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 8
  • Sets
    • S(b);N_GUARD::QAR2(A)
    • S(b);N_GUARD,XS(B)::QAR2(A)
    • S(b);N_GUARD::QAR2(A),XS(b)
    • P(f);N_GUARD::QAR2(A)
  • Tries
    • Try
      • Q(A);XP(f)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);XP(E)::QAR2(A)
        • R(d);P_SPINP(e)::QAR2(A)
      • Refutation
        • S(a);XP(C)
    • Try
      • P(C);CHECK
      • Vars
        • S(b);XP(C)::QAR2(A)
      • Refutation
        • K(c);P-FLIGHT
  • Actual
    • Q(A);
    • Threat
      • QAR1(A)
    • Vars
      • S(a);XP(C)::S(B),XS(a)
      • P(e);P_SPINR(d),XQ(A)::S(B)
      • R(d);N_GUARD,P_SPINP(e)::QAB1(A),XR(d)
      • P(e);OGATE,P_SPINR(d)::QAB1(A),XP(g)
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