MESON Chess Problem Database

Problem Display
PID: 196583 (6r1/5pqb/R2Pp2n/2rkB2R/1P1bpQN1/1Pp5/3N4/5K2 w - - 0 1)

Nield, Joshua

Western Daily Mercury, 1918

(First published on Fri Sep 13 1918)

6r1/5pqb/R2Pp2n/2rkB2R/1P1bpQN1/1Pp5/3N4/5K2

#2

10 + 11

15239 Valois Notebooks 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe5
      • 2.Sf6#
    • 1...Qf6
      • 2.Sxf6#
    • 1...Qf8
      • 2.Sf6#
    • 1...Rc4
      • 2.bxc4#
    • 1...Be3
      • 2.Sxe3#
    • 1...Sf5
      • 2.Qxe4#
    • 1...e3
      • 2.Qxd4#
  • Tries
    • 1.Bxg7+?
      • 1...Be5
        • 2.Qxe5#
      • 1...Bf5
        • 2.Qxe4#
      • 1...Sf5
        • 2.Qxe4#
      • 1...f5
        • 2.Qxe4#
      • 1...e5!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qxd4#
      • 1...Qf6+
        • 2.Sxf6#
      • 1...Qxe5
        • 2.Sf6#
      • 1...Bxe3
        • 2.Sxe3#
      • 1...Bxe5
        • 2.Qxc5#
      • 1...Rc4
        • 2.bxc4#
      • 1...Sf5
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • Q(i);N_GUARD,P_SPINQ(i),XB(G)::S(F)
    • Q(i);N_GUARD,P_PINQ(E)::S(F),XQ(i)
    • Q(i);N_GUARD::S(F)
    • R(d);OGATE::P(C),XR(d)
    • B(b);N_GUARD::S(F),XB(b)
    • S(g);S_CUTB(j)::QAB1(E),XP(c)
    • P(c);OGATE::QAR1(E),XB(b)
  • Tries
    • Try
      • B(G);CHECK,XQ(i)
      • Vars
        • B(b);N_GUARD,P_SPINB(b)::QAR1(E),XB(b)
        • B(j);P_SPINB(j)::QAB1(E),XP(c)
        • S(g);P_SPINS(g)::QAB1(E),XP(c)
        • P(h);P_SPINP(h)::QAB1(E),XP(c)
      • Refutation
        • P(f);P_SPINP(f)
  • Actual
    • Q(E);
    • Threat
      • QAR1(E),XB(b)
    • Vars
      • Q(i);CHECK,N_GUARD::S(F),XQ(i)
      • Q(i);N_GUARD,P_SPINQ(i),XB(G)::S(F)
      • B(b);XQ(E)::S(F),XB(b)
      • B(b);OGATE,P_SPINB(b),XB(G)::QAR1(E),XR(d)
      • R(d);OGATE::P(C),XR(d)
      • S(g);S_CUTB(j)::QAB1(E),XP(c)
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