MESON Chess Problem Database

Problem Display
PID: 51445 (3N1b2/Rb3Q2/p1pk1P2/n2pp3/8/3K3B/8/1R3N2 w - - 0 1)

Wright Wood, S (= Wood, SW)

The Guardian, 1960

3N1b2/Rb3Q2/p1pk1P2/n2pp3/8/3K3B/8/1R3N2

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Qxf8#
    • 1...Ba8
      • 2.Qxf8#
    • 1...Bc8
      • 2.Qxf8#
    • 1...Bh6
      • 2.Qe7#
    • 1...Be7
      • 2.Qxe7#
    • 1...Bg7
      • 2.Qe7#
    • 1...Sb3
      • 2.Sxb7#
    • 1...Sc4
      • 2.Sxb7#
    • 1...c5
      • 2.Qd7#
  • Tries
    • 1.Sd2?
      • 1...Kc5
        • 2.Qxf8#
      • 1...Be7
        • 2.Qxe7#
      • 1...Ba8
        • 2.Qxf8#
      • 1...Bc8
        • 2.Qxf8#
      • 1...Bh6
        • 2.Qe7#
      • 1...Bg7
        • 2.Qe7#
      • 1...Sb3
        • 2.Sxb7#
      • 1...Sc4
        • 2.Sxb7#
      • 1...d4
        • 2.Se4#
      • 1...c5
        • 2.Qd7#
      • 1...e4+!
    • 1.Sg3?
      • 1...Kc5
        • 2.Qxf8#
      • 1...Be7
        • 2.Qxe7#
      • 1...d4
        • 2.Se4#
      • 1...Ba8
        • 2.Qxf8#
      • 1...Bc8
        • 2.Qxf8#
      • 1...Bh6
        • 2.Qe7#
      • 1...Bg7
        • 2.Qe7#
      • 1...Sb3
        • 2.Sxb7#
      • 1...Sc4
        • 2.Sxb7#
      • 1...c5
        • 2.Sf5#
        • 2.Qd7#
      • 1...e4+!
    • 1.Rc1?
      • threat
        • 2.Qd7#
      • 1...Be7
        • 2.Qxe7#
      • 1...Sc4
        • 2.Sxb7#
      • 1...Bc8
        • 2.Qc7#
        • 2.Qxf8#
      • 1...e4+!
    • 1.Qc7+?
      • 1...Kc5
        • 2.Se6#
      • 1...Kxc7!
  • Keys
    • 1.Qd7+!
      • 1...Kc5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = CHECKING_KEY
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 8
  • Sets
    • K(f);S_FLIGHT::QAB(G),XB(h)
    • B(g);::QAB(G),XB(h)
    • B(h);N_GUARD::QAB1(G)
    • B(h);N_GUARD::QAB1(G),XB(h)
    • S(a);N_GUARD::S(H),XB(g)
    • P(e);SBLOCK::QAR1(G)
  • Tries
    • Try
      • S(B);
      • Vars
        • K(f);S_FLIGHT::QAB(G),XB(h)
        • B(h);N_GUARD::QAB1(G),XB(h)
        • B(g);::QAB(G),XB(h)
        • B(h);N_GUARD::QAB1(G)
        • S(a);N_GUARD::S(H),XB(g)
        • P(b);N_GUARD::S(B)
        • P(e);SBLOCK::QAR1(G)
      • Refutation
        • P(c);CHECK
    • Try
      • S(B);
      • Vars
        • K(f);S_FLIGHT::QAB(G),XB(h)
        • B(h);N_GUARD::QAB1(G),XB(h)
        • P(b);N_GUARD::S(B)
        • B(g);::QAB(G),XB(h)
        • B(h);N_GUARD::QAB1(G)
        • S(a);N_GUARD::S(H),XB(g)
      • Refutation
        • P(c);CHECK
    • Try
      • R(A);
      • Threat
        • QAR1(G)
      • Vars
        • B(h);N_GUARD::QAB1(G),XB(h)
        • S(a);N_GUARD::S(H),XB(g)
      • Refutation
        • P(c);CHECK
    • Try
      • Q(G);CHECK
      • Vars
        • K(f);P_SPINP(e),S_FLIGHT::S(H)
      • Refutation
        • K(f);P_SPINB(g),S_FLIGHT,XQ(G)
  • Actual
    • Q(G);CHECK
    • Vars
      • K(f);S_FLIGHT::S(H)
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