MESON Chess Problem Database

Problem Display
PID: 31402 (3nK3/p2Q2B1/P1pP3p/Rn2P1pR/3kN3/Pprp4/1N1P2B1/8 w - - 0 1)

Winter-Wood, Edward John

Shields Daily News, 1886

3nK3/p2Q2B1/P1pP3p/Rn2P1pR/3kN3/Pprp4/1N1P2B1/8

#2

13 + 10

3392 Chess Souvenirs 1886
15351 SCPF/BCPS Black Books 2016

SOLUTION

  • SOUND
  • Sets
    • 1...Sxa3
      • 2.e6#
    • 1...Sxd6+
      • 2.Qxd6#
      • 2.exd6#
    • 1...Sc7+
      • 2.dxc7#
    • 1...g4
      • 2.e6#
  • Tries
    • 1.Qxa7+?
      • 1...Kd5
        • 2.Sxg5#
      • 1...Rc5
        • 2.Qxc5#
      • 1...Sxa7
        • 2.e6#
      • 1...c5!
  • Keys
    • 1.Sc5!
      • 1...Sxd6+
        • 2.Qxd6#
        • 2.exd6#
      • 1...Sc7+
        • 2.dxc7#
      • 1...Kxc5
        • 2.Qxa7#
      • 1...Rxc5
        • 2.Qg4#
      • 1...Sxa3
        • 2.Qg4#
        • 2.e6#
      • 1...Rc1
        • 2.Sxb3#
      • 1...Rc2
        • 2.Sxb3#
      • 1...Rc4
        • 2.Sxb3#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sb7
        • 2.Se6#
      • 1...Sf7
        • 2.Se6#
      • 1...g4
        • 2.e6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • S(e);XP(D)::B(L)+P(G)
    • S(e);CHECK,OGATE::QAR(K)+P(J),XS(e)
    • P(f);::B(L)+P(G)
  • Tries
    • Try
      • Q(K);CHECK,XP(i)
      • Vars
        • K(d);P-FLIGHT,P_SPINS(e)::B(C)+S(E),XP(f)
        • R(b);N_GUARD,P_SPINR(b)::QAB1(K),XR(b)
        • S(e);XQ(K)::B(L)+P(G)
      • Refutation
        • P(g);P_SPINP(g)
  • Actual
    • S(E);
    • Vars
      • S(e);CHECK,OGATE::QAR(K)+P(J),XS(e)
      • K(d);OGATEB,P_SPINS(e),S_FLIGHT,XS(E)::QAB(K),XP(i)
      • R(b);SBLOCK,XS(E)::QAR(K)
      • R(b);N_GUARD::S(E),XP(a)
      • S(j);N_GUARD::S(E),XS(j)
      • S(j);N_GUARD::S(E)
      • P(f);::B(L)+P(G)
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