MESON Chess Problem Database

Problem Display
PID: 65349 (8/2pq1n2/8/2Q2P1K/pR1pk3/2B1bR1N/B1n1P3/8 w - - 0 1)

Vinagre, Jose C

The Problemist, 2006

8/2pq1n2/8/2Q2P1K/pR1pk3/2B1bR1N/B1n1P3/8

#2

9 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf5+
      • 2.Qxf5#
    • 1...Qc8
      • 2.Qd5#
    • 1...Qe8
      • 2.Qd5#
    • 1...Qd5
      • 2.Qxd5#
    • 1...Qe7
      • 2.Qd5#
    • 1...Bc1
      • 2.Sf2#
    • 1...Bd2
      • 2.Sf2#
    • 1...Bf2
      • 2.Sxf2#
    • 1...Bf4
      • 2.Sf2#
    • 1...Bg5
      • 2.Sf2#
    • 1...Bh6
      • 2.Sf2#
    • 1...Sd6
      • 2.Qd5#
  • Keys
    • 1.Bxd4!
      • threat
        • 2.Qxc2#
      • 1...Qxf5+
        • 2.Qxf5#
      • 1...Qxd4
        • 2.Qd5#
      • 1...Bxd4
        • 2.Sf2#
      • 1...Sxb4
        • 2.Rxe3#
      • 1...Sxd4
        • 2.Bb1#
      • 1...Qb5
        • 2.Bd5#
      • 1...Qc6
        • 2.Qxc6#
      • 1...Sa1
        • 2.Rxe3#
      • 1...Se1
        • 2.Rxe3#
      • 1...Sa3
        • 2.Rxe3#
      • 1...Se5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 11
  • Sets
    • Q(g);CHECK,OGATE,XP(H)::QAB1(G),XQ(g)
    • Q(g);N_GUARD::QAB1(G)
    • Q(g);N_GUARD,P_PINP(H)::QAB1(G),XQ(g)
    • B(b);N_GUARD::S(E)
    • B(b);N_GUARD::S(E),XB(b)
    • S(h);S_CUTQ(g)::QAB1(G)
  • Actual
    • B(C);XP(d)
    • Threat
      • QAB(G),XS(a)
    • Vars
      • Q(g);CHECK,OGATE,XP(H)::QAB1(G),XQ(g)
      • Q(g);N_GUARD,P_SPINQ(g),XB(C)::QAB1(G)
      • B(b);N_GUARD,P_SPINB(b),XB(C)::S(E)
      • S(a);N_GUARD,XR(F)::R1(D),XB(b)
      • S(a);OGATEB,P_SPINS(a),XB(C)::B(A)
      • Q(g);N_GUARD::B(A)
      • Q(g);N_GUARD::QAB(G),XQ(g)
      • S(a);N_GUARD::R1(D),XB(b)
      • S(h);N_GUARD::QAR1(G),XS(h)
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