MESON Chess Problem Database

Problem Display
PID: 18458 (B2B3n/3pp1K1/Q2NN2R/2p1kP2/2pr1pP1/2n2P2/8/3R4 w - - 0 1)

Wright Wood, S (= Wood, SW)

Time & Tide, 1955

B2B3n/3pp1K1/Q2NN2R/2p1kP2/2pr1pP1/2n2P2/8/3R4

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd1
      • 2.Sxc4#
    • 1...Rd2
      • 2.Sxc4#
    • 1...Rd3
      • 2.Sxc4#
    • 1...Rd5
      • 2.Sxc4#
    • 1...Sg6
      • 2.Sf7#
    • 1...Sf7
      • 2.Sxf7#
    • 1...dxe6
      • 2.Rxe6#
    • 1...exd6
      • 2.Bf6#
  • Tries
    • 1.Kxh8?
      • threat
        • 2.Sf7#
      • 1...exd6
        • 2.Bf6#
      • 1...Rxd6!
    • 1.Sxd4?
      • threat
        • 2.Sxc4#
      • 1...exd6
        • 2.Bf6#
        • 2.Qxd6#
      • 1...Sxd1!
    • 1.Rxd4?
      • threat
        • 2.Sxc4#
      • 1...exd6
        • 2.Bf6#
        • 2.Qxd6#
      • 1...dxe6!
    • 1.Rxh8?
      • threat
        • 2.Sf7#
      • 1...exd6
        • 2.Bf6#
      • 1...Rxd6!
  • Keys
    • 1.Qa1!
      • 1...Kxd6
        • 2.Bc7#
      • 1...Rxd1
        • 2.Sxc4#
      • 1...Rxd6
        • 2.Re1#
      • 1...Sxd1
        • 2.Sxc4#
      • 1...dxe6
        • 2.Rxe6#
      • 1...exd6
        • 2.Bf6#
      • 1...Se4
        • 2.Sxc4#
      • 1...Rd2
        • 2.Sxc4#
      • 1...Rd3
        • 2.Sxc4#
      • 1...Re4
        • 2.Rd5#
      • 1...Rd5
        • 2.Sxc4#
        • 2.Rxd5#
      • 1...Sb1
        • 2.Sxc4#
      • 1...Sa2
        • 2.Sxc4#
      • 1...Se2
        • 2.Sxc4#
      • 1...Sa4
        • 2.Sxc4#
      • 1...Sb5
        • 2.Sxc4#
      • 1...Sd5
        • 2.Sxc4#
      • 1...Sg6
        • 2.Sf7#
      • 1...Sf7
        • 2.Sxf7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 1
  • Sets
    • R(c);N_GUARD,XR(A)::S(F),XP(b)
    • R(c);N_GUARD::S(F),XP(b)
    • S(i);N_GUARD::S(F)
    • S(i);N_GUARD::S(F),XS(i)
    • P(g);OGATE,XS(G)::R1(H),XP(g)
    • P(h);OGATE,XS(F)::B(K)
  • Tries
    • Try
      • K(I);S_FLIGHT,XS(i)
      • Threat
        • S(F)
      • Vars
        • P(h);OGATE,XS(F)::B(K)
      • Refutation
        • R(c);XS(F)
    • Try
      • S(G);XR(c)
      • Threat
        • S(F),XP(b)
      • Refutation
        • S(a);XR(A)
    • Try
      • R(A);XR(c)
      • Threat
        • S(F),XP(b)
      • Refutation
        • P(g);XS(G)
    • Try
      • R(H);XS(i)
      • Threat
        • S(F)
      • Vars
        • P(h);OGATE,XS(F)::B(K)
      • Refutation
        • R(c);XS(F)
  • Actual
    • Q(E);
    • Vars
      • K(f);OGATEB,P_SPINR(c),S_FLIGHT,XS(F)::B(K)
      • R(c);N_GUARD,P_SPINS(a),XR(A)::S(F),XP(b)
      • R(c);N_GUARD,P_SPINS(a),SBLOCK,XS(F)::R(A)
      • S(a);P_SPINR(c),XR(A)::S(F),XP(b)
      • P(g);OGATE,XS(G)::R1(H),XP(g)
      • P(h);OGATE,SBLOCK,XS(F)::B(K)
      • S(a);P_SPINR(c)::S(F),XP(b)
      • R(c);N_GUARD,P_SPINS(a)::S(F),XP(b)
      • R(c);OGATE,P_SPINS(a)::R1(A)
      • S(i);N_GUARD::S(F)
      • S(i);N_GUARD::S(F),XS(i)
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