MESON Chess Problem Database

Problem Display
PID: 261414 (2qN2b1/1p6/2B4R/B1kpP2R/P1N5/pP2P3/K2p3n/2b5 w - - 0 1)

Handloser, Ralf Chris

Neue Zurcher Zeitung, 1999

2qN2b1/1p6/2B4R/B1kpP2R/P1N5/pP2P3/K2p3n/2b5

#2

11 + 9

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qh3
      • 2.Sxb7#
    • 1...Qg4
      • 2.Sxb7#
    • 1...Qf5
      • 2.Sxb7#
    • 1...dxc4
      • 2.b4#
    • 1...d4
      • 2.e6#
  • Tries
    • 1.Sxd2?
      • threat
        • 2.b4#
      • 1...Qg4
        • 2.Sxb7#
      • 1...d4
        • 2.Se4#
      • 1...Bxd2!
    • 1.Sb6?
      • threat
        • 2.b4#
      • 1...Qg4
        • 2.Sxb7#
      • 1...d4!
    • 1.Bb5?
      • threat
        • 2.b4#
      • 1...d4
        • 2.e6#
      • 1...dxc4!
    • 1.Rh4?
      • threat
        • 2.b4#
      • 1...d4
        • 2.exd4#
      • 1...Qg4
        • 2.Sxb7#
      • 1...Sg4!
  • Keys
    • 1.Sd6!
      • threat
        • 2.b4#
      • 1...Qxd8
        • 2.Sxb7#
      • 1...d4
        • 2.Se4#
      • 1...Qg4
        • 2.S6xb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • Q(h);N_GUARD::S(K),XP(g)
    • P(f);SBLOCK,XS(E)::P(B)
    • P(f);::R(H)+P(G)
  • Tries
    • Try
      • S(E);XP(b)
      • Threat
        • P(B)
      • Vars
        • Q(h);N_GUARD::S(K),XP(g)
        • P(f);N_GUARD,P_PINP(B)::S(E)
      • Refutation
        • B(a);XS(E)
    • Try
      • S(E);
      • Threat
        • P(B)
      • Vars
        • Q(h);N_GUARD::S(K),XP(g)
      • Refutation
        • P(f);P_PINP(B)
    • Try
      • B(I);
      • Threat
        • P(B)
      • Vars
        • P(f);::R(H)+P(G)
      • Refutation
        • P(f);XS(E)
    • Try
      • R(H);
      • Threat
        • P(B)
      • Vars
        • P(f);OGATE::P(C),XP(f)
        • Q(h);N_GUARD::S(K),XP(g)
      • Refutation
        • S(c);
  • Actual
    • S(E);
    • Threat
      • P(B)
    • Vars
      • Q(h);N_GUARD,XS(K)::S(E),XP(g)
      • P(f);N_GUARD,P_PINP(B)::S(E)
      • Q(h);N_GUARD::S(E),XP(g)
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