MESON Chess Problem Database

Problem Display
PID: 64 (N1b1r3/RpbP1r1q/1P1n3R/1k1p4/n2P3p/3N4/6PK/2Q2B2 w - - 0 1)

Paros, Gyorgy

1st Prize, Grantham Journal, 1930

(First published on Tue Apr 15 1930)

N1b1r3/RpbP1r1q/1P1n3R/1k1p4/n2P3p/3N4/6PK/2Q2B2

#2

11 + 11

35 L'Italia Scacchistica 1930
268 Chess Life 1968
3098 FIDE Album (1914-1944) (I) 1971

SOLUTION

  • SOUND
  • Sets
    • 1...Sb2
      • 2.Qc5#
    • 1...Sc5
      • 2.Qxc5#
    • 1...Sxb6
      • 2.Sxc7#
      • 2.Qc5#
    • 1...Sc4+
      • 2.Sxc7#
    • 1...Se4+
      • 2.Sxc7#
    • 1...Sf5+
      • 2.Sxc7#
  • Tries
    • 1.Qc2?
      • threat
        • 2.Qxa4#
      • 1...Sc4+
        • 2.Sxc7#
      • 1...Se4+
        • 2.Sxc7#
      • 1...Sf5+
        • 2.Sxc7#
      • 1...Sxb6
        • 2.Sxc7#
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Sb2
        • 2.Qc5#
      • 1...Sc3!
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qxa4#
      • 1...Sc4+
        • 2.Sxc7#
      • 1...Se4+
        • 2.Sf4#
      • 1...Sf5+
        • 2.Se5#
      • 1...Kc4
        • 2.Qb4#
      • 1...Kc6
        • 2.Qxa4#
      • 1...Sxb6
        • 2.Qc5#
      • 1...Sb2
        • 2.Qc5#
      • 1...Sc3
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::QAR1(A)
    • S(a);N_GUARD::QAR1(A),XS(a)
    • S(e);CHECK::S(K),XB(g)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB1(A),XS(a)
      • Vars
        • S(e);CHECK::S(K),XB(g)
        • S(a);N_GUARD::QAR1(A),XS(a)
        • S(a);N_GUARD::QAR1(A)
      • Refutation
        • S(a);
  • Actual
    • Q(A);
    • Threat
      • QAB1(A),XS(a)
    • Vars
      • S(e);CHECK,SBLOCK::S(K),XB(g)
      • S(e);CHECK,N_GUARD,S_CUTQ(i),S_CUTR(k)::B(B)+S(E)
      • S(e);CHECK,N_GUARD,S_CUTQ(i),S_CUTR(h)::B(B)+S(E)
      • K(c);S_FLIGHT::QAR1(A)
      • K(c);P_SPINS(e),S_FLIGHT::QAB(A),XS(a)
      • S(a);N_GUARD,XP(G)::QAR1(A)
      • S(a);N_GUARD::QAR1(A)
      • S(a);N_GUARD::QAR1(A),XS(a)
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