MESON Chess Problem Database

Problem Display
PID: 106766 (1nqn1bB1/1r6/N2Pp1R1/1P2p3/2N1k1P1/2pRP2b/Q1K1P3/8 w - - 0 1)

Bennett, Frederick

The Field, 1955

(First published on Thu Feb 3 1955)

1nqn1bB1/1r6/N2Pp1R1/1P2p3/2N1k1P1/2pRP2b/Q1K1P3/8

#2

12 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qd7
      • 2.Sc5#
    • 1...Qxc4
      • 2.Qxc4#
    • 1...Qc5
      • 2.Sxc5#
    • 1...Bxd6
      • 2.Sxd6#
    • 1...Sbc6
      • 2.Sc5#
    • 1...Sdc6
      • 2.Sc5#
  • Tries
    • 1.Rxe6?
      • threat
        • 2.Rd4#
        • 2.Rxe5#
      • 1...Qxe6
        • 2.Sc5#
      • 1...Qxc4
        • 2.Qxc4#
      • 1...Rxb5
        • 2.Bh7#
        • 2.Rd4#
      • 1...Bxg4
        • 2.Rxe5#
      • 1...Bxd6
        • 2.Sxd6#
        • 2.Rd4#
      • 1...Qc5
        • 2.Sxc5#
      • 1...Re7
        • 2.Rd4#
      • 1...Bg7
        • 2.Bh7#
        • 2.Rd4#
      • 1...Sbc6
        • 2.Sc5#
      • 1...Sd7
        • 2.Bh7#
        • 2.Rd4#
      • 1...Sdc6
        • 2.Sc5#
      • 1...Sf7
        • 2.Bh7#
        • 2.Rd4#
      • 1...Sxe6!
    • 1.Qa4?
      • threat
        • 2.Sd2#
      • 1...Qxc4
        • 2.Sc5#
        • 2.Qxc4#
      • 1...Bxg4!
  • Keys
    • 1.Rg5!
      • threat
        • 2.Rxe5#
      • 1...Qxc4
        • 2.Qxc4#
      • 1...Rxb5
        • 2.Bh7#
      • 1...Bxd6
        • 2.Sxd6#
      • 1...Qc5
        • 2.Sxc5#
      • 1...Bg7
        • 2.Bh7#
      • 1...Sbc6
        • 2.Sc5#
      • 1...Sd7
        • 2.Bh7#
      • 1...Sdc6
        • 2.Sc5#
      • 1...Sf7
        • 2.Bh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 1
  • Sets
    • Q(h);N_GUARD::S(I)
    • Q(h);OGATE,XS(F)::QAR2(A),XQ(h)
    • Q(h);N_GUARD::S(I),XQ(h)
    • B(j);XP(J)::S(F),XB(j)
    • S(g);S_CUTQ(h)::S(I)
    • S(i);S_CUTQ(h)::S(I)
  • Tries
    • Try
      • R(K);P_PINP(d),XP(e)
      • Threat
        • DUALS(2)
      • Vars
        • Q(h);N_GUARD,N_SPINP(d),XR(K)::S(I)
        • Q(h);OGATE,XS(F)::QAR2(A),XQ(h)
        • B(b);XP(G)::R1(K),XP(d)
        • Q(h);N_GUARD::S(I),XQ(h)
        • R(f);::R1(D)
        • S(g);S_CUTQ(h)::S(I)
        • S(i);S_CUTQ(h)::S(I)
      • Refutation
        • S(i);N_SPINP(d),XR(K)
    • Try
      • Q(A);
      • Threat
        • QAR(A)+S(F),DCHECK
      • Refutation
        • B(b);XP(G)
  • Actual
    • R(K);
    • Threat
      • R1(K),XP(d)
    • Vars
      • Q(h);OGATE,XS(F)::QAR2(A),XQ(h)
      • R(f);N_GUARD,XP(H)::B(L)
      • B(j);XP(J)::S(F),XB(j)
      • Q(h);N_GUARD::S(I),XQ(h)
      • B(j);S_CUTR(f)::B(L)
      • S(g);S_CUTQ(h)::S(I)
      • S(g);S_CUTR(f)::B(L)
      • S(i);S_CUTQ(h)::S(I)
      • S(i);S_CUTR(f)::B(L)
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