MESON Chess Problem Database

Problem Display
PID: 109071 (2Q2K2/2b5/3p4/3kN2p/P2p3P/2pN1p2/2B2P2/8 w - - 0 1)

Nemo, Ottmar (Weiss, Ottmar)

Austrums, 1897

2Q2K2/2b5/3p4/3kN2p/P2p3P/2pN1p2/2B2P2/8

#2

8 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Sb4+?
      • 1...Kxe5
        • 2.Qf5#
      • 1...Kc5!
    • 1.Sf4+?
      • 1...Kxe5
        • 2.Qf5#
      • 1...Kc5!
    • 1.Bd1?
      • threat
        • 2.Bxf3#
      • 1...Ke4
        • 2.Bxf3#
      • 1...dxe5!
    • 1.Qe6+?
      • 1...Ke4
        • 2.Sc4#
        • 2.Sg4#
        • 2.Sc6#
        • 2.Sg6#
        • 2.Sd7#
        • 2.Sf7#
      • 1...Kxe6!
  • Keys
    • 1.Sd7!
      • 1...Kc4
        • 2.Sb6#
      • 1...Ke4
        • 2.Sf6#
      • 1...Kc6
        • 2.Sb4#
      • 1...Ke6
        • 2.Sf4#
      • 1...Ba5
        • 2.Sf4#
        • 2.Sf6#
      • 1...Bb6
        • 2.Sf4#
        • 2.Sf6#
      • 1...Bb8
        • 2.Sf4#
        • 2.Sf6#
      • 1...Bd8
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(d);P-FLIGHT,XS(F)::QAR1(G)
      • Refutation
        • K(d);P-FLIGHT,P_SPINB(g)
    • Try
      • S(C);CHECK
      • Vars
        • K(d);P-FLIGHT,XS(F)::QAR1(G)
      • Refutation
        • K(d);P-FLIGHT,P_SPINB(g)
    • Try
      • B(A);
      • Threat
        • B(A),XP(b)
      • Vars
        • K(d);S_FLIGHT::B(A),XP(b)
      • Refutation
        • P(f);XS(F)
    • Try
      • Q(G);CHECK
      • Refutation
        • K(d);S_FLIGHT,XQ(G)
  • Actual
    • S(F);
    • Vars
      • K(d);P_SPINB(g),S_FLIGHT::S(F)
      • K(d);S_FLIGHT::S(F)
      • K(d);P_SPINB(g),S_FLIGHT::S(C)
      • K(d);S_FLIGHT::S(C)
      • B(g);::S(C)
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