MESON Chess Problem Database

Problem Display
PID: 50713 (N7/5p2/3BR1P1/b1pk4/1p4pp/4K2B/8/5Q2 w - - 0 1)

Goodwin, H

Chess Amateur (The), 1907

N7/5p2/3BR1P1/b1pk4/1p4pp/4K2B/8/5Q2

#2

7 + 7

SOLUTION

  • SOUND
  • Tries
    • 1.Sc7+?
      • 1...Kc6
        • 2.Qb5#
      • 1...Bxc7!
    • 1.Bg3?
      • threat
        • 2.Rd6#
      • 1...Kxe6
        • 2.Qxf7#
      • 1...fxe6
        • 2.Bg2#
      • 1...c4
        • 2.Qf5#
      • 1...Bc7
        • 2.Sxc7#
      • 1...hxg3!
    • 1.Qf5+?
      • 1...Kc4
        • 2.Qd3#
      • 1...Kc6!
  • Keys
    • 1.Bh2!
      • threat
        • 2.Rd6#
      • 1...Kxe6
        • 2.Qxf7#
      • 1...fxe6
        • 2.Bg2#
      • 1...c4
        • 2.Qf5#
      • 1...Bc7
        • 2.Sxc7#
      • 1...g3
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);CHECK
      • Vars
        • K(f);S_FLIGHT::QAB1(A)
      • Refutation
        • B(d);XS(G)
    • Try
      • B(D);
      • Threat
        • R1(E)
      • Vars
        • K(f);OGATEB,P_SPINP(b),S_FLIGHT,XR(E)::QAB1(A),XP(g)
        • P(g);SBLOCK,XR(E)::B(C)
        • P(e);SBLOCK::QAR2(A)
        • B(d);N_GUARD::S(G),XB(d)
      • Refutation
        • P(c);XB(D)
    • Try
      • Q(A);CHECK
      • Vars
        • K(f);S_FLIGHT::QAB1(A)
      • Refutation
        • K(f);S_FLIGHT
  • Actual
    • B(D);
    • Threat
      • R1(E)
    • Vars
      • K(f);OGATEB,P_SPINP(b),S_FLIGHT,XR(E)::QAB1(A),XP(g)
      • P(g);SBLOCK,XR(E)::B(C)
      • P(e);SBLOCK::QAR2(A)
      • B(d);N_GUARD::S(G),XB(d)
      • P(b);::QAR2(A)
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