MESON Chess Problem Database

Problem Display
PID: 151328 (3N4/8/2pPpNb1/b1B1k1Kp/q3p3/2r5/1Q2B3/r3R3 w - - 0 1)

Barth, Michael

2nd Prize, Schach-Aktiv, 2009

3N4/8/2pPpNb1/b1B1k1Kp/q3p3/2r5/1Q2B3/r3R3

#2

8 + 10

23 Die Schwalbe 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qd1
      • 2.Sxc6#
    • 1...Qc2
      • 2.Sxc6#
    • 1...Qb3
      • 2.Sxc6#
    • 1...Qa2
      • 2.Sxc6#
    • 1...Qa3
      • 2.Sxc6#
    • 1...Qb4
      • 2.Sxc6#
    • 1...Qc4
      • 2.Sxc6#
    • 1...Qd4
      • 2.Sxc6#
    • 1...Bf5
      • 2.Sf7#
    • 1...Bf7
      • 2.Sxf7#
    • 1...Bh7
      • 2.Sf7#
  • Tries
    • 1.Bf3?
      • threat
        • 2.Qh2#
      • 1...Qc2
        • 2.Sxc6#
      • 1...Qa2
        • 2.Sxc6#
      • 1...e3
        • 2.Sd7#
      • 1...Ra2!
    • 1.Qxc3+?
      • 1...Qd4
        • 2.Sxc6#
        • 2.Qxd4#
        • 2.Qg3#
      • 1...Bxc3!
  • Keys
    • 1.Bc4!
      • threat
        • 2.Sd7#
      • 1...Qxc4
        • 2.Sxc6#
      • 1...Bxd8
        • 2.Qxc3#
      • 1...Be8
        • 2.Rxe4#
      • 1...e3
        • 2.Qh2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 10
  • Sets
    • Q(c);N_GUARD::S(H),XP(h)
    • Q(c);N_GUARD,N_SPINR(b)::S(H),XP(h)
    • B(j);N_GUARD::S(H)
    • B(j);N_GUARD::S(H),XB(j)
  • Tries
    • Try
      • B(C);P_PINP(d)
      • Threat
        • QAB(B)
      • Vars
        • Q(c);N_GUARD::S(H),XP(h)
        • P(d);::S(G)
      • Refutation
        • R(a);
    • Try
      • Q(B);CHECK,XR(b)
      • Refutation
        • B(e);XQ(B)
  • Actual
    • B(C);P_PINP(d)
    • Threat
      • S(G)
    • Vars
      • Q(c);N_GUARD,XB(C)::S(H),XP(h)
      • B(e);N_GUARD,P_PINS(G),XS(H)::QAB(B),XR(b)
      • B(j);N_GUARD::R1(A),XP(d)
      • P(d);::QAB(B)
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