MESON Chess Problem Database

Problem Display
PID: 207092 (6K1/8/B1Q1p2B/8/2nkN1P1/1bRn2P1/3pp3/1N2b3 w - - 0 1)

Dudziak, Johannes

Deutsche Schachblatter, 1942

6K1/8/B1Q1p2B/8/2nkN1P1/1bRn2P1/3pp3/1N2b3

#2

9 + 8

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ke5
      • 2.Bg7#
  • Tries
    • 1.Rxd3+?
      • 1...Ke5
        • 2.Bf4#
        • 2.Bg7#
      • 1...Kxd3!
    • 1.Rxc4+?
      • 1...Ke5
        • 2.Bg7#
        • 2.Qd6#
      • 1...Bxc4!
    • 1.Qxc4+?
      • 1...Ke5
        • 2.Bg7#
      • 1...Bxc4!
    • 1.Qc5+?
      • 1...Kxe4
        • 2.Bb7#
      • 1...Sxc5!
    • 1.Qd6+?
      • 1...Kxe4
        • 2.Bb7#
      • 1...Sxd6!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Sf3#
      • 1...Ke3
        • 2.Qc5#
      • 1...Ke5
        • 2.Bg7#
      • 1...Sde5
        • 2.Sxe6#
      • 1...Sce5
        • 2.Qe4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(g);S_FLIGHT::B(H)
  • Tries
    • Try
      • R(B);CHECK,XS(e)
      • Refutation
        • K(g);P-FLIGHT,P_SPINS(f),XR(B)
    • Try
      • R(B);CHECK,XS(f)
      • Refutation
        • B(d);XR(B)
    • Try
      • Q(G);CHECK,XS(f)
      • Vars
        • K(g);S_FLIGHT::B(H)
      • Refutation
        • B(d);XQ(G)
    • Try
      • Q(G);CHECK
      • Vars
        • K(g);P-FLIGHT,XS(D)::B(F)
      • Refutation
        • S(e);XQ(G)
    • Try
      • Q(G);CHECK
      • Vars
        • K(g);P-FLIGHT,XS(D)::B(F)
      • Refutation
        • S(f);XQ(G)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(g);P_SPINS(e),S_FLIGHT::QAB(G)
      • K(g);S_FLIGHT::B(H)
      • S(e);SBLOCK::S(D),XP(h)
      • S(f);::QAR1(G)
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