MESON Chess Problem Database

Problem Display
PID: 263937 (3b4/pRp5/3pb1P1/rn1N3K/2kP1Rp1/p1N1Bp2/P1Q5/8 w - - 0 1)

Swords, WJ

Sunday Referee, 1935

(First published on Sun Mar 3 1935)

3b4/pRp5/3pb1P1/rn1N3K/2kP1Rp1/p1N1Bp2/P1Q5/8

#2

10 + 11

15239 Valois Notebooks 2022

SOLUTION

  • SOUND
  • Sets
    • 1...f2
      • 2.Qe2#
  • Keys
    • 1.Sb4!
      • threat
        • 2.Qb3#
      • 1...Sxc3+
        • 2.d5#
      • 1...Sxd4+
        • 2.Scd5#
      • 1...Kxb4
        • 2.d5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(b);N_GUARD::QAB(B)
  • Actual
    • S(G);
    • Threat
      • QAB1(B)
    • Vars
      • S(f);CHECK,N_GUARD,P_SPINS(f),XS(C)::R(F)+P(E)
      • S(f);CHECK,N_GUARD,P_SPINS(f),XP(E)::QAR(B)+S(C)
      • K(c);P-FLIGHT,P_SPINS(f),XS(G)::R(F)+P(E)
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