MESON Chess Problem Database

Problem Display
PID: 219436 (Kbk2rn1/nR6/2N2B2/7b/8/8/8/6Q1 w - - 0 1)

Ernst, Erich

Badische Neueste Nachrichten, 1996

Kbk2rn1/nR6/2N2B2/7b/8/8/8/6Q1

#2

5 + 6

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bg4
      • 2.Qxg4#
    • 1...Bh2
      • 2.Sxa7#
    • 1...Bg3
      • 2.Sxa7#
    • 1...Bf4
      • 2.Sxa7#
    • 1...Be5
      • 2.Sxa7#
    • 1...Bd6
      • 2.Sxa7#
  • Tries
    • 1.Qh2?
      • threat
        • 2.Qxb8#
      • 1...Bxh2
        • 2.Sxa7#
      • 1...Bc7
        • 2.Rxc7#
        • 2.Qxc7#
      • 1...Bg3
        • 2.Sxa7#
      • 1...Bf4
        • 2.Sxa7#
      • 1...Be5
        • 2.Sxa7#
      • 1...Bd6
        • 2.Sxa7#
      • 1...Sxc6!
    • 1.Qd1?
      • threat
        • 2.Qd7#
      • 1...Sxf6
        • 2.Se7#
      • 1...Rf7
        • 2.Qd8#
      • 1...Rd8
        • 2.Qxd8#
      • 1...Bg4
        • 2.Qxg4#
      • 1...Be8
        • 2.Qd8#
      • 1...Bd6
        • 2.Sxa7#
      • 1...Bc7
        • 2.Sxa7#
      • 1...Bxd1!
    • 1.Qg3?
      • threat
        • 2.Qxb8#
      • 1...Bxg3
        • 2.Sxa7#
      • 1...Bc7
        • 2.Rxc7#
        • 2.Qxc7#
      • 1...Bf4
        • 2.Sxa7#
      • 1...Be5
        • 2.Sxa7#
      • 1...Bd6
        • 2.Sxa7#
      • 1...Sxc6!
  • Keys
    • 1.Qd4!
      • threat
        • 2.Qd7#
      • 1...Sxf6
        • 2.Se7#
      • 1...Rf7
        • 2.Qd8#
      • 1...Rd8
        • 2.Qxd8#
      • 1...Bg4
        • 2.Qxg4#
      • 1...Be8
        • 2.Qd8#
      • 1...Bd6
        • 2.Sxa7#
      • 1...Bc7
        • 2.Sxa7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • B(a);N_GUARD::QAB(A),XB(a)
    • B(c);N_GUARD::S(B),XS(b)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XB(c)
      • Vars
        • B(c);N_GUARD,XQ(A)::S(B),XS(b)
        • B(c);N_GUARD::S(B),XS(b)
      • Refutation
        • S(b);XS(B)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • S(f);N_GUARD,XB(C)::S(B)
        • R(e);N_GUARD::QAR1(A)
        • R(e);N_GUARD::QAR1(A),XR(e)
        • B(a);N_GUARD::QAB(A),XB(a)
        • B(a);S_CUTR(e)::QAR1(A)
        • B(c);N_GUARD::S(B),XS(b)
      • Refutation
        • B(a);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XB(c)
      • Vars
        • B(c);N_GUARD,XQ(A)::S(B),XS(b)
        • B(c);N_GUARD::S(B),XS(b)
      • Refutation
        • S(b);XS(B)
  • Actual
    • Q(A);
    • Threat
      • QAB1(A)
    • Vars
      • S(f);N_GUARD,XB(C)::S(B)
      • R(e);N_GUARD::QAR1(A)
      • R(e);N_GUARD::QAR1(A),XR(e)
      • B(a);N_GUARD::QAB(A),XB(a)
      • B(a);S_CUTR(e)::QAR1(A)
      • B(c);N_GUARD::S(B),XS(b)
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