MESON Chess Problem Database

Problem Display
PID: 45953 (3R3B/2p1pb2/K1Bb3r/2NpN3/1Ppkr3/p4R2/2Q1p3/q1n5 w - - 0 1)

Barnes, Barry Peter

Lipton, Michael

4th Place, Match: Great Britain - USA, 2001-2002

3R3B/2p1pb2/K1Bb3r/2NpN3/1Ppkr3/p4R2/2Q1p3/q1n5

#2

9 + 13

56 The Problemist 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Qc3
      • 2.Qxc3#
    • 1...Qb1
      • 2.Qc3#
    • 1...Qa2
      • 2.Qc3#
    • 1...Bxc5
      • 2.Qxc4#
    • 1...Bxe5
      • 2.Qxe4#
    • 1...Bg6
      • 2.Se6#
    • 1...Sa2
      • 2.Qd2#
  • Keys
    • 1.Bxd5!
      • threat
        • 2.Qxe4#
        • 2.Qxc4#
      • 1...Bxc5+
        • 2.Sc6#
      • 1...Bxe5+
        • 2.Be6#
      • 1...Kxd5
        • 2.Qxe4#
      • 1...Rxe5
        • 2.Qe4#
        • 2.Qxc4#
      • 1...Rxh8
        • 2.Qxe4#
      • 1...Bxd5
        • 2.Sc6#
      • 1...Rf6
        • 2.Qxe4#
      • 1...e1Q
        • 2.Qxc4#
      • 1...e1R
        • 2.Qxc4#
      • 1...Qc3
        • 2.Qxe4#
      • 1...Qb1
        • 2.Qxc4#
      • 1...Qa2
        • 2.Qxe4#
      • 1...Re3
        • 2.Qxc4#
      • 1...Rf4
        • 2.Qxc4#
      • 1...Rg4
        • 2.Qxc4#
      • 1...Reh4
        • 2.Qxc4#
      • 1...Rhh4
        • 2.Qxc4#
      • 1...Bg6
        • 2.Qxc4#
      • 1...Sd3
        • 2.Qxc4#
      • 1...c3
        • 2.Qxe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 6
    • ADDED MATES = 13
    • REMOVED MATES = 1
  • Sets
    • Q(a);N_GUARD::QAB1(A),XQ(a)
    • Q(a);N_GUARD::QAB1(A)
    • B(i);P_PINB(G),P_SPINP(h),XS(D)::QAR1(A),XP(e)
    • B(i);P_PINB(G),P_SPINB(i),P_SPINP(h),XS(E)::QAR1(A),XR(g)
    • B(m);N_GUARD,S_CUTR(j)::S(D)
    • S(b);N_GUARD::QAR2(A)
  • Actual
    • B(G);XP(h)
    • Threat
      • DUALS(2)
    • Vars
      • B(i);CHECK,XS(D)::B(I)+S(E),DCHECK
      • B(i);CHECK,OGATEB,P_SPINB(i),XS(E)::R(H)+B(G)
      • K(f);P-FLIGHT,P_SPINB(i),XB(G)::QAB1(A),XR(g)
      • R(j);XB(I)::QAR1(A),XR(g)
      • B(m);SBLOCK,XB(G)::B(I)+S(E),DCHECK
      • R(j);::QAR1(A),XR(g)
      • P(c);::QAR1(A),XP(e)
      • Q(a);::QAR1(A),XR(g)
      • Q(a);::QAR1(A),XP(e)
      • R(g);::QAR1(A),XP(e)
      • R(j);::QAR1(A),XP(e)
      • B(m);::QAR1(A),XP(e)
      • S(b);::QAR1(A),XP(e)
      • P(e);::QAR1(A),XR(g)
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