MESON Chess Problem Database

Problem Display
PID: 219227 (B3R3/p2p4/2pp4/p7/1P1k1r1B/K1NP1b2/2RP1pq1/1QN5 w - - 0 1)

Supp, Walter

Badische Neueste Nachrichten, 1998

B3R3/p2p4/2pp4/p7/1P1k1r1B/K1NP1b2/2RP1pq1/1QN5

#2

11 + 10

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qh1
      • 2.Bxf2#
    • 1...Qh3
      • 2.Bxf2#
    • 1...Qg4
      • 2.Bxf2#
    • 1...Qg5
      • 2.Bxf2#
    • 1...Qg6
      • 2.Bxf2#
    • 1...Qg7
      • 2.Bxf2#
    • 1...Qg8
      • 2.Bxf2#
    • 1...Rg4
      • 2.Bf6#
    • 1...Rf6
      • 2.Bxf6#
    • 1...Bd5
      • 2.S3e2#
    • 1...axb4+
      • 2.Qxb4#
    • 1...c5
      • 2.Sb5#
  • Tries
    • 1.Sb5+?
      • 1...cxb5
        • 2.Qa1#
        • 2.Qb2#
      • 1...Kd5!
    • 1.Qb3?
      • threat
        • 2.Qc4#
      • 1...axb4+
        • 2.Qxb4#
      • 1...Qg8
        • 2.Bxf2#
      • 1...Bd5
        • 2.S3e2#
      • 1...d5!
  • Keys
    • 1.bxa5!
      • threat
        • 2.Qb4#
      • 1...Kc5
        • 2.Sb3#
      • 1...Qg8
        • 2.Bxf2#
      • 1...Bd5
        • 2.S3e2#
      • 1...c5
        • 2.Sb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • Q(b);N_GUARD::B(I),XP(a)
    • R(e);N_GUARD::B(I)
    • R(e);N_GUARD::B(I),XR(e)
    • B(c);N_GUARD,SBLOCK::S(F)
    • P(f);CHECK,OGATE,XP(H)::QAR2(A),XP(f)
    • P(g);N_GUARD::S(F)
  • Tries
    • Try
      • S(F);CHECK
      • Refutation
        • K(d);P-FLIGHT,P_SPINP(g)
    • Try
      • Q(A);
      • Threat
        • QAR1(A)
      • Vars
        • P(f);CHECK,OGATE,XP(H)::QAR2(A),XP(f)
        • Q(b);N_GUARD::B(I),XP(a)
        • B(c);N_GUARD::S(F)
      • Refutation
        • P(h);
  • Actual
    • P(H);XP(f)
    • Threat
      • QAR2(A)
    • Vars
      • K(d);S_FLIGHT::S(B)
      • Q(b);N_GUARD::B(I),XP(a)
      • B(c);N_GUARD,SBLOCK::S(F)
      • P(g);N_GUARD::S(F)
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