MESON Chess Problem Database

Problem Display
PID: 261105 (1B1R4/4bP1B/7n/1b1PNP1N/p2pkP2/3p4/Q2P2P1/3K4 w - - 0 1)

Handloser, Ralf Chris

Neue Zurcher Zeitung, 2015

1B1R4/4bP1B/7n/1b1PNP1N/p2pkP2/3p4/Q2P2P1/3K4

#2

13 + 7

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sg4
      • 2.f6#
    • 1...Sxf7
      • 2.f6#
    • 1...Sg8
      • 2.f6#
  • Tries
    • 1.Sf3?
      • threat
        • 2.Sg3#
      • 1...Bd6
        • 2.Sg5#
      • 1...Bh4!
    • 1.Sc4?
      • threat
        • 2.Sg3#
      • 1...Bxd8
        • 2.Sd6#
      • 1...Bd6
        • 2.Sxd6#
      • 1...Bh4
        • 2.Sd6#
      • 1...Bd7!
    • 1.Sg4?
      • threat
        • 2.Sf2#
        • 2.Sg3#
      • 1...Sxg4
        • 2.Sg3#
        • 2.f6#
      • 1...Bd6
        • 2.Sf2#
        • 2.Sgf6#
      • 1...Bh4!
    • 1.Sd7?
      • threat
        • 2.Sg3#
      • 1...Bh4
        • 2.Sc5#
      • 1...Bd6
        • 2.Sdf6#
      • 1...Bc4!
  • Keys
    • 1.Sxd3!
      • threat
        • 2.Sf2#
      • 1...Kxd3
        • 2.Qc2#
      • 1...Bxd3
        • 2.Sg3#
      • 1...Bh4
        • 2.Sc5#
      • 1...Sg4
        • 2.f6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • S(f);N_GUARD::B(K)+P(H)
    • S(f);N_GUARD,XP(J)::B(K)+P(H)
  • Tries
    • Try
      • S(G);
      • Threat
        • S(I)
      • Vars
        • B(g);N_GUARD::S(G)
      • Refutation
        • B(g);
    • Try
      • S(G);
      • Threat
        • S(I)
      • Vars
        • B(g);N_GUARD,XR(M)::S(G)
        • B(g);N_GUARD::S(G),XB(g)
        • B(g);N_GUARD::S(G)
      • Refutation
        • B(e);
    • Try
      • S(G);
      • Threat
        • DUALS(2)
      • Refutation
        • B(g);
    • Try
      • S(G);
      • Threat
        • S(I)
      • Vars
        • B(g);N_GUARD::S(G)
      • Refutation
        • B(e);
  • Actual
    • S(G);XP(a)
    • Threat
      • S(G)
    • Vars
      • K(d);OGATEB,S_FLIGHT,XS(G)::QAB1(B)
      • B(e);SBLOCK,XS(G)::S(I)
      • B(g);N_GUARD::S(G)
      • S(f);N_GUARD::B(K)+P(H)
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