MESON Chess Problem Database

Problem Display
PID: 36237 (3r1Bq1/3pNbp1/7n/4kpK1/3N1p2/3Q1P2/8/8 w - - 0 1)

Gordian, Yury Markovic

Marandiuk, Mikhail Nazarovich

2nd Prize, Hlas l'udu, 1976

3r1Bq1/3pNbp1/7n/4kpK1/3N1p2/3Q1P2/8/8

#2

6 + 9

3771 FIDE Album (1974-1976) 1980

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Sg6#
    • 1...d5
      • 2.Sec6#
  • Tries
    • 1.Sb5?
      • threat
        • 2.Qe2#
        • 2.Qd6#
      • 1...Ke6
        • 2.Qe2#
        • 2.Qd5#
        • 2.Qd6#
      • 1...Bc4
        • 2.Qd6#
      • 1...Sg4
        • 2.Qxf5#
        • 2.Qd6#
      • 1...d5
        • 2.Qe2#
      • 1...d6
        • 2.Qe2#
      • 1...Bd5!
    • 1.Sdc6+?
      • 1...Ke6
        • 2.Qd5#
      • 1...dxc6!
    • 1.Se6?
      • threat
        • 2.Qd5#
      • 1...Kxe6
        • 2.Qd5#
      • 1...Bxe6
        • 2.Sg6#
      • 1...dxe6
        • 2.Sc6#
      • 1...d5!
    • 1.Sec6+?
      • 1...Kd5
        • 2.Qb5#
        • 2.Qb3#
      • 1...dxc6!
    • 1.Qe3+?
      • 1...Kd6
        • 2.Sb5#
      • 1...fxe3!
  • Keys
    • 1.Sexf5!
      • threat
        • 2.Qe4#
      • 1...Kd5
        • 2.Qb5#
      • 1...Bd5
        • 2.Bd6#
      • 1...d5
        • 2.Qe2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(f);N_GUARD,SBLOCK::S(E)
    • P(e);N_GUARD,SBLOCK::S(E)
  • Tries
    • Try
      • S(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(f);::QAB1(A)
        • P(e);::QAR(A)
      • Refutation
        • B(f);
    • Try
      • S(C);CHECK
      • Vars
        • K(b);P-FLIGHT::QAB1(A)
      • Refutation
        • P(e);XS(C)
    • Try
      • S(C);
      • Threat
        • QAR1(A)
      • Vars
        • K(b);P-FLIGHT,XS(C)::QAB1(A)
        • B(f);N_GUARD,SBLOCK,XS(C)::S(E)
        • P(e);N_GUARD,SBLOCK,XS(C)::S(E)
      • Refutation
        • P(e);
    • Try
      • S(E);CHECK
      • Refutation
        • P(e);XS(E)
    • Try
      • Q(A);CHECK
      • Vars
        • K(b);S_FLIGHT::S(C)
      • Refutation
        • P(a);XQ(A)
  • Actual
    • S(E);XP(c)
    • Threat
      • QAR1(A)
    • Vars
      • K(b);P-FLIGHT::QAR2(A)
      • B(f);SBLOCK::B(F)
      • P(e);SBLOCK::QAR(A)
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