MESON Chess Problem Database

Problem Display
PID: 221947 (1bn5/7n/8/1Q5p/1NPr1kb1/3B1N2/5K2/8 w - - 0 1)

Tucker, Frederick G

British Chess Magazine, 1929

1bn5/7n/8/1Q5p/1NPr1kb1/3B1N2/5K2/8

#2

6 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc4
      • 2.Sd5#
      • 2.Qxc4#
    • 1...Rd5
      • 2.Sxd5#
    • 1...Rd6
      • 2.Qe5#
    • 1...Bxf3
      • 2.Qf5#
    • 1...Bf5
      • 2.Qxf5#
    • 1...Be5
      • 2.Qxe5#
    • 1...Ba7
      • 2.Qe5#
    • 1...Sg5
      • 2.Qxg5#
    • 1...Sf6
      • 2.Qg5#
    • 1...Sf8
      • 2.Qg5#
    • 1...Sd6
      • 2.Qe5#
  • Tries
    • 1.Bxh7?
      • threat
        • 2.Qg5#
      • 1...Bxf3
        • 2.Qf5#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Rd5
        • 2.Sxd5#
      • 1...Be5
        • 2.Qxe5#
      • 1...Rd2+!
    • 1.Qxb8+?
      • 1...Rd6
        • 2.Sd5#
      • 1...Sd6!
  • Keys
    • 1.Qd5!
      • threat
        • 2.Qxd4#
      • 1...Rxd3
        • 2.Sxd3#
      • 1...Rxc4
        • 2.Qxc4#
      • 1...Rxd5
        • 2.Sxd5#
      • 1...Bxf3
        • 2.Qf5#
      • 1...Bf5
        • 2.Qxf5#
      • 1...Re4
        • 2.Qxe4#
      • 1...Be5
        • 2.Qxe5#
      • 1...Ba7
        • 2.Qe5#
      • 1...Sg5
        • 2.Qxg5#
      • 1...Sf6
        • 2.Qg5#
      • 1...Sd6
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(a);N_GUARD::S(D),XR(a)
    • R(a);S_CUTB(f)::QAB1(F)
    • B(c);N_GUARD,XS(C)::QAR1(F)
    • B(c);N_GUARD::QAR1(F),XB(c)
    • B(f);N_GUARD::QAB1(F),XB(f)
    • B(f);N_GUARD::QAB1(F)
    • S(e);N_GUARD::QAB1(F),XS(e)
    • S(e);N_GUARD::QAB1(F)
    • S(g);S_CUTB(f)::QAB1(F)
  • Tries
    • Try
      • B(B);XS(e)
      • Threat
        • QAB1(F)
      • Vars
        • B(c);N_GUARD,XS(C)::QAR1(F)
        • B(c);N_GUARD::QAR1(F),XB(c)
        • R(a);N_GUARD::S(D),XR(a)
        • B(f);N_GUARD::QAB1(F),XB(f)
      • Refutation
        • R(a);CHECK
    • Try
      • Q(F);CHECK,XB(f)
      • Vars
        • R(a);P_SPINR(a)::S(D)
      • Refutation
        • S(g);P_SPINS(g)
  • Actual
    • Q(F);
    • Threat
      • QAR2(F),XR(a)
    • Vars
      • R(a);XB(B)::S(D),XR(a)
      • R(a);OGATE,XP(E)::QAR(F),XR(a)
      • R(a);XQ(F)::S(D),XR(a)
      • B(c);N_GUARD,XS(C)::QAR1(F)
      • B(c);N_GUARD::QAR1(F),XB(c)
      • R(a);N_GUARD::QAR1(F),XR(a)
      • B(f);N_GUARD::QAB1(F),XB(f)
      • B(f);N_GUARD::QAB1(F)
      • S(e);N_GUARD::QAB1(F),XS(e)
      • S(e);N_GUARD::QAB1(F)
      • S(g);S_CUTB(f)::QAB1(F)
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