MESON Chess Problem Database

Problem Display
PID: 48296 (b1B3N1/6B1/K2p4/1Qpkr2R/2p1n2q/3nPPp1/NP3p2/3Rb3 w - - 0 1)

Neale, Harry R

British Chess Magazine, 1944

b1B3N1/6B1/K2p4/1Qpkr2R/2p1n2q/3nPPp1/NP3p2/3Rb3

#2

11 + 12

3979 Systematic Terminology 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Qe7
      • 2.Sxe7#
    • 1...Qh1
      • 2.Se7#
    • 1...Qh2
      • 2.Se7#
    • 1...Qh3
      • 2.Se7#
    • 1...Qf4
      • 2.Se7#
    • 1...Qg4
      • 2.Se7#
    • 1...Rf5
      • 2.Rxf5#
    • 1...Rg5
      • 2.Se7#
    • 1...Bb4
      • 2.Sxb4#
    • 1...Bb7+
      • 2.Qxb7#
    • 1...Sd2
      • 2.Sc3#
    • 1...Sc3
      • 2.Sb4#
    • 1...Sg5
      • 2.Sf6#
    • 1...Sf6
      • 2.Se7#
    • 1...c3
      • 2.Sb4#
      • 2.Rxd3#
  • Tries
    • 1.Rd2?
      • threat
        • 2.Sb4#
      • 1...Bb7+
        • 2.Qxb7#
      • 1...Sxd2
        • 2.Sc3#
      • 1...Bxd2!
    • 1.Rg5?
      • threat
        • 2.Se7#
      • 1...Bb7+
        • 2.Qxb7#
      • 1...Sxg5
        • 2.Sf6#
      • 1...Qxg5!
    • 1.fxe4+?
      • 1...Qxe4
        • 2.Sf6#
        • 2.Se7#
      • 1...Kxe4!
  • Keys
    • 1.b3!
      • threat
        • 2.bxc4#
      • 1...Bb7+
        • 2.Qxb7#
      • 1...cxb3
        • 2.Rxd3#
      • 1...Sd2
        • 2.Sc3#
      • 1...Sc3
        • 2.Sb4#
      • 1...Sg5
        • 2.Sf6#
      • 1...Sf6
        • 2.Se7#
      • 1...c3
        • 2.Sb4#
        • 2.Rxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • Q(g);N_GUARD::S(K),XQ(g)
    • Q(g);N_GUARD::S(K)
    • R(j);OGATEB::R(G),XR(j)
    • R(j);S_CUTQ(g)::S(K)
    • B(a);N_GUARD::S(B),XB(a)
    • B(l);CHECK,N_GUARD::QAB(F),XB(l)
    • S(f);N_GUARD,N_SPINS(c),S_CUTB(a)::S(B)
    • S(f);S_CUTB(a)::S(B)
    • S(f);N_GUARD,N_SPINR(j),S_CUTQ(g)::S(K)
    • S(f);S_CUTQ(g)::S(K)
  • Tries
    • Try
      • R(A);
      • Threat
        • S(B)
      • Vars
        • B(l);CHECK,N_GUARD::QAB(F),XB(l)
        • S(f);N_GUARD,N_SPINS(c),XR(A)::S(B)
      • Refutation
        • B(a);N_SPINS(c),XR(A)
    • Try
      • R(G);
      • Threat
        • S(K)
      • Vars
        • B(l);CHECK,N_GUARD::QAB(F),XB(l)
        • S(f);N_GUARD,N_SPINR(j),XR(G)::S(K)
      • Refutation
        • Q(g);N_SPINR(j),XR(G)
    • Try
      • P(E);CHECK,XS(f)
      • Refutation
        • K(i);N_SPINP(h),N_SPINR(j),N_SPINS(c),S_FLIGHT,XP(E)
  • Actual
    • P(C);
    • Threat
      • P(C),XP(e)
    • Vars
      • B(l);CHECK,N_GUARD::QAB(F),XB(l)
      • P(e);N_GUARD,XP(C)::R(A),XS(c)
      • S(f);N_GUARD,N_SPINS(c),S_CUTB(a)::S(B)
      • S(f);S_CUTB(a)::S(B)
      • S(f);N_GUARD,N_SPINR(j),S_CUTQ(g)::S(K)
      • S(f);S_CUTQ(g)::S(K)
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