MESON Chess Problem Database

Problem Display
PID: 45666 (K3Q1n1/p5p1/P3P2b/1p1R1R2/1B2p3/3Pk2p/rpP5/3B1n2 w - - 0 1)

Hermanson, Halvar

1st Comm., Probleemblad, 1958

K3Q1n1/p5p1/P3P2b/1p1R1R2/1B2p3/3Pk2p/rpP5/3B1n2

#2

10 + 11

3976 FIDE Album (1956-1958) 1961

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Bc5#
  • Tries
    • 1.Qxb5?
      • threat
        • 2.Qc5#
      • 1...exd3
        • 2.Qxd3#
      • 1...Ra5!
    • 1.Qh5?
      • threat
        • 2.Qe2#
      • 1...exd3
        • 2.Qf3#
      • 1...Sg3!
    • 1.Qg6?
      • threat
        • 2.Qg1#
      • 1...exd3
        • 2.Rf3#
      • 1...Sg3
        • 2.Qxg3#
      • 1...Bg5
        • 2.Qxg5#
      • 1...h2!
    • 1.Qd7?
      • threat
        • 2.Qxa7#
      • 1...exd3
        • 2.Rde5#
      • 1...Rxa6!
    • 1.Qb8?
      • threat
        • 2.Qxa7#
      • 1...exd3
        • 2.Qe5#
      • 1...Rxa6!
    • 1.Qf8?
      • threat
        • 2.Qc5#
      • 1...exd3
        • 2.Rfe5#
      • 1...Se7!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Qc5#
      • 1...exd3
        • 2.Rxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • S(a);SBLOCK::B(D)
  • Tries
    • Try
      • Q(J);XP(g)
      • Threat
        • QAB(J)
      • Vars
        • P(f);OGATE,XP(C)::QAR1(J),XP(f)
      • Refutation
        • R(b);
    • Try
      • Q(J);
      • Threat
        • QAR1(J)
      • Vars
        • P(f);N_GUARD,XP(C)::QAR1(J)
      • Refutation
        • S(a);
    • Try
      • Q(J);
      • Threat
        • QAB(J)
      • Vars
        • P(f);N_GUARD,XP(C)::R1(F)
        • S(a);N_GUARD::QAR2(J),XS(a)
        • B(h);N_GUARD::QAB(J),XB(h)
      • Refutation
        • P(e);
    • Try
      • Q(J);
      • Threat
        • QAB(J),XP(i)
      • Vars
        • P(f);OGATEB,XP(C)::R(E)
      • Refutation
        • R(b);XP(G)
    • Try
      • Q(J);
      • Threat
        • QAB(J),XP(i)
      • Vars
        • P(f);OGATEB,XP(C)::QAR2(J)
      • Refutation
        • R(b);XP(G)
    • Try
      • Q(J);
      • Threat
        • QAB(J)
      • Vars
        • P(f);OGATEB,XP(C)::R(F)
      • Refutation
        • S(k);
  • Actual
    • Q(J);
    • Threat
      • QAB(J)
    • Vars
      • P(f);OGATE,XP(C)::R1(E),XP(f)
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