MESON Chess Problem Database

Problem Display
PID: 221080 (3B4/2pnK3/8/qbN1k1n1/2RpPp1P/6rr/1b3P1N/2Q2R2 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1998

3B4/2pnK3/8/qbN1k1n1/2RpPp1P/6rr/1b3P1N/2Q2R2

#2

10 + 11

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Bxc7#
    • 1...Qd2
      • 2.Bxc7#
    • 1...Qc3
      • 2.Bxc7#
    • 1...Qb4
      • 2.Bxc7#
    • 1...Qa1
      • 2.Bxc7#
    • 1...Qa2
      • 2.Bxc7#
    • 1...Qa3
      • 2.Bxc7#
    • 1...Qa4
      • 2.Bxc7#
    • 1...Qa8
      • 2.Bxc7#
    • 1...Ra3
      • 2.Sg4#
    • 1...Rb3
      • 2.Sg4#
    • 1...Rc3
      • 2.Sg4#
    • 1...Rd3
      • 2.Sg4#
    • 1...Re3
      • 2.Sg4#
    • 1...Rf3
      • 2.Sg4#
    • 1...Rg4
      • 2.Sxg4#
    • 1...Sb6
      • 2.Bxc7#
  • Keys
    • 1.Qe3!
      • threat
        • 2.Sd3#
      • 1...Rxe3
        • 2.Sg4#
      • 1...Bxc4
        • 2.Sxd7#
      • 1...Sxe4
        • 2.Qxe4#
      • 1...Sxc5
        • 2.Rxc5#
      • 1...fxe3
        • 2.f4#
      • 1...Qd2
        • 2.Bxc7#
      • 1...Qc3
        • 2.Bxc7#
      • 1...Qb4
        • 2.Bxc7#
      • 1...Qa3
        • 2.Bxc7#
      • 1...Ba3
        • 2.Qxd4#
      • 1...d3
        • 2.Sxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 12
  • Sets
    • Q(f);N_GUARD::B(J),XP(j)
    • Q(f);N_GUARD,P_PINS(H)::B(J),XP(j)
    • R(b);N_GUARD::S(D)
    • R(b);N_GUARD::S(D),XR(b)
    • S(k);S_CUTQ(f)::B(J),XP(j)
  • Actual
    • Q(A);
    • Threat
      • S(H)
    • Vars
      • R(b);N_GUARD,XQ(A)::S(D)
      • B(g);N_GUARD,XR(E)::S(H),XS(k)
      • S(i);OGATE,P_SPINS(i),XP(F)::QAR1(A),XS(i)
      • S(k);OGATE,XS(H)::R(E),XS(k)
      • P(e);OGATE,XQ(A)::P(C)
      • Q(f);N_GUARD::B(J),XP(j)
      • Q(f);N_GUARD,P_PINS(H)::B(J),XP(j)
      • B(a);N_GUARD,P_PINS(H)::QAB1(A),XP(d)
      • P(d);::S(H),XP(d)
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