MESON Chess Problem Database

Problem Display
PID: 154038 (5r2/3pp3/2p1Np1R/B3k3/4N1P1/2P5/Q7/6KB w - - 0 1)

Greenwood, William W

Chess Amateur (The), 1911

5r2/3pp3/2p1Np1R/B3k3/4N1P1/2P5/Q7/6KB

#2

9 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...dxe6
      • 2.Bc7#
  • Tries
    • 1.S4c5?
      • threat
        • 2.Qh2#
      • 1...Kd6
        • 2.Bc7#
        • 2.Qh2#
      • 1...f5!
    • 1.Sf4?
      • threat
        • 2.Sd3#
        • 2.Sg6#
      • 1...Rg8
        • 2.Sd3#
      • 1...d5
        • 2.Bc7#
      • 1...Kxf4!
    • 1.S6c5?
      • threat
        • 2.Sd3#
      • 1...d5
        • 2.Bc7#
        • 2.Qh2#
      • 1...Kf4!
    • 1.Sxf8?
      • threat
        • 2.Sg6#
      • 1...d5
        • 2.Bc7#
        • 2.Qh2#
      • 1...Kf4!
    • 1.Qh2+?
      • 1...Kxe6
        • 2.Sg5#
      • 1...Kd5!
  • Keys
    • 1.Sd6!
      • 1...Kxd6
        • 2.Bc7#
      • 1...dxe6
        • 2.Qh2#
      • 1...exd6
        • 2.Qe2#
      • 1...Rf7
        • 2.Sxf7#
      • 1...Ra8
        • 2.Sf7#
      • 1...Rb8
        • 2.Sf7#
      • 1...Rc8
        • 2.Sf7#
      • 1...Rd8
        • 2.Sf7#
      • 1...Re8
        • 2.Sf7#
      • 1...Rg8
        • 2.Sf7#
      • 1...Rh8
        • 2.Sf7#
      • 1...c5
        • 2.Qd5#
      • 1...f5
        • 2.Sc4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • P(d);N_GUARD,XS(H)::B(G)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAB(C)
      • Refutation
        • P(c);
    • Try
      • S(H);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);P_PINP(F)::S(H)
        • P(d);N_GUARD::B(G)
      • Refutation
        • K(a);S_FLIGHT,XS(H)
    • Try
      • S(H);
      • Threat
        • S(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • S(H);XR(f)
      • Threat
        • S(H)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);P-FLIGHT,P_SPINP(c),XS(H)::S(E)
      • Refutation
        • K(a);P-FLIGHT
  • Actual
    • S(E);
    • Vars
      • K(a);OGATEB,S_FLIGHT,XS(E)::B(G)
      • P(d);SBLOCK,XS(H)::QAB(C)
      • P(e);SBLOCK,XS(E)::QAR(C)
      • R(f);N_GUARD::S(E),XR(f)
      • R(f);N_GUARD::S(E)
      • R(f);N_GUARD,P_PINP(F)::S(E)
      • P(b);N_GUARD::QAR1(C)
      • P(c);::S(E)
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