MESON Chess Problem Database

Problem Display
PID: 256446 (BQ2n3/8/8/K1PN2P1/1Ppkp1P1/p7/P3R3/1nb1N3 w - - 0 1)

Wright Wood, S (= Wood, SW)

British Chess Magazine, 1933

BQ2n3/8/8/K1PN2P1/1Ppkp1P1/p7/P3R3/1nb1N3

#2

11 + 7

SOLUTION

  • SOUND
  • Sets
    • 1...Sd6
      • 2.Qh8#
    • 1...Sc7
      • 2.Qh8#
    • 1...e3
      • 2.Qf4#
  • Tries
    • 1.Sc3?
      • threat
        • 2.Sb5#
      • 1...Kxc3
        • 2.Qe5#
      • 1...Sd6
        • 2.Qh8#
      • 1...Sc7
        • 2.Qh8#
      • 1...Sxc3!
    • 1.Qxe8?
      • threat
        • 2.Rxe4#
        • 2.Qxe4#
        • 2.Qh8#
      • 1...Bxg5
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...c3
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...Be3
        • 2.Qh8#
      • 1...Bf4
        • 2.Rxe4#
        • 2.Qxe4#
      • 1...Sd2
        • 2.Qh8#
      • 1...Sc3
        • 2.Qh8#
      • 1...e3!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Sb5#
      • 1...Kc3
        • 2.Sb5#
      • 1...Ke5
        • 2.Rxe4#
      • 1...Sxc7
        • 2.Qh8#
      • 1...Sc3
        • 2.Se6#
      • 1...Sd6
        • 2.Qh8#
      • 1...c3
        • 2.Rxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • S(g);OGATE::QAB(K)
    • P(f);OGATEB::QAR2(K)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(H)
      • Vars
        • K(e);N_GUARD,S_FLIGHT,XS(H)::QAB(K)
        • S(g);OGATE::QAB(K)
      • Refutation
        • S(a);XS(H)
    • Try
      • Q(K);XS(g)
      • Threat
        • DUALS(3)
      • Vars
        • B(b);::QAB(K)
        • S(a);::QAB(K)
      • Refutation
        • P(f);
  • Actual
    • S(H);
    • Threat
      • S(H)
    • Vars
      • K(e);S_FLIGHT::S(H)
      • K(e);N_GUARD,P_SPINP(f),S_FLIGHT::R1(C),XP(f)
      • S(g);OGATE,XS(H)::QAB(K)
      • S(a);SBLOCK::S(H)
      • S(g);OGATE::QAB(K)
      • P(d);SBLOCK::R1(C),XP(f)
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