MESON Chess Problem Database

Problem Display
PID: 88549 (r3Q3/4p3/2pp4/2p1bp1N/b1N1k1p1/2BR4/B2PPP2/2K2n2 w - - 0 1)

Hume, George

The Problemist, 1927

r3Q3/4p3/2pp4/2p1bp1N/b1N1k1p1/2BR4/B2PPP2/2K2n2

#2

10 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4
      • 2.Sf6#
    • 1...Bf6
      • 2.Sxd6#
    • 1...Bg7
      • 2.Sxd6#
    • 1...Bh8
      • 2.Sxd6#
    • 1...Sxd2
      • 2.Sxd2#
    • 1...g3
      • 2.f3#
    • 1...f4
      • 2.Qg6#
  • Tries
    • 1.Re3+?
      • 1...Kd5
        • 2.Sb6#
      • 1...Sxe3!
    • 1.Qxc6+?
      • 1...d5
        • 2.Qxd5#
      • 1...Bxc6!
    • 1.Qxe7?
      • threat
        • 2.Sxd6#
      • 1...d5
        • 2.Sd6#
        • 2.Qxe5#
      • 1...Rd8!
  • Keys
    • 1.Rxd6!
      • threat
        • 2.d3#
      • 1...Bxd6
        • 2.Sxd6#
      • 1...Sxd2
        • 2.Sxd2#
      • 1...exd6
        • 2.Sxd6#
      • 1...f4
        • 2.Qg6#
      • 1...Bc2
        • 2.Qxc6#
      • 1...Bf4
        • 2.Sf6#

This is a version of 31077

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • B(f);N_GUARD,P_PINP(C),P_SPINP(j),SBLOCK::S(I)
    • B(f);N_GUARD,P_SPINP(j)::S(H),XP(i)
    • S(a);XP(C)::S(H),XS(a)
    • P(d);N_GUARD::P(E)
    • P(g);OGATEB::QAB(J)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • K(c);S_FLIGHT::B(B)+S(H),DCHECK
      • Refutation
        • S(a);XR(G)
    • Try
      • Q(J);CHECK,XP(h)
      • Vars
        • P(i);P_SPINP(i)::QAB1(J),XP(i)
      • Refutation
        • B(b);XQ(J)
    • Try
      • Q(J);P_PINB(f),XP(j)
      • Threat
        • S(H),XP(i)
      • Refutation
        • R(k);
  • Actual
    • R(G);XP(i)
    • Threat
      • P(C)
    • Vars
      • B(f);P_SPINP(j),XR(G)::S(H),XB(f)
      • S(a);XP(C)::S(H),XS(a)
      • P(j);P_SPINB(f),XR(G)::S(H),XP(j)
      • P(g);OGATEB::QAB(J)
      • B(b);N_GUARD::QAB(J),XP(h)
      • B(f);N_GUARD,P_PINP(C),P_SPINP(j),SBLOCK::S(I)
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