MESON Chess Problem Database

Problem Display
PID: 81590 (3n4/8/3p4/N1pk1K2/4p3/2Bp4/R6Q/8 w - - 0 1)

Stojnic, Mihailo

2nd Prize, Yugoslav Championship, 1997

3n4/8/3p4/N1pk1K2/4p3/2Bp4/R6Q/8

#2

5 + 6

56 The Problemist 2008

SOLUTION

  • SOUND
  • Sets
    • 1...d2
      • 2.Rxd2#
      • 2.Qxd2#
    • 1...e3
      • 2.Qh1#
      • 2.Qg2#
  • Tries
    • 1.Qf4?
      • threat
        • 2.Qxe4#
      • 1...e3
        • 2.Qf3#
        • 2.Qc4#
        • 2.Qe4#
      • 1...c4!
    • 1.Qb2?
      • 1...c4
        • 2.Qb5#
      • 1...Se6
        • 2.Qb7#
      • 1...Sb7
        • 2.Qxb7#
      • 1...Sf7
        • 2.Qb7#
      • 1...d2
        • 2.Qxd2#
      • 1...e3
        • 2.Qg2#
      • 1...Sc6!
    • 1.Qe2?
      • threat
        • 2.Qxe4#
      • 1...dxe2
        • 2.Rd2#
      • 1...e3
        • 2.Qxd3#
        • 2.Qf3#
        • 2.Qg2#
      • 1...c4!
    • 1.Qh4?
      • threat
        • 2.Qxe4#
      • 1...e3
        • 2.Qh1#
        • 2.Qc4#
        • 2.Qe4#
      • 1...c4!
    • 1.Qh5?
      • threat
        • 2.Kf6#
      • 1...Sc6
        • 2.Qf7#
      • 1...Sf7
        • 2.Qxf7#
      • 1...e3
        • 2.Qf3#
        • 2.Qh1#
      • 1...Se6!
    • 1.Qh6?
      • 1...Sc6
        • 2.Qe6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Sb7
        • 2.Qe6#
      • 1...Sf7
        • 2.Qe6#
      • 1...d2
        • 2.Rxd2#
        • 2.Qxd2#
      • 1...e3
        • 2.Qh1#
      • 1...c4!
    • 1.Qh7?
      • 1...Sc6
        • 2.Qg8#
        • 2.Qf7#
      • 1...Se6
        • 2.Qb7#
      • 1...Sb7
        • 2.Qg8#
        • 2.Qxb7#
        • 2.Qf7#
      • 1...Sf7
        • 2.Qxf7#
      • 1...d2
        • 2.Rxd2#
      • 1...e3
        • 2.Qh1#
      • 1...c4!
  • Keys
    • 1.Qh8!
      • 1...c4
        • 2.Qd4#
      • 1...Sc6
        • 2.Qg8#
      • 1...Se6
        • 2.Qa8#
      • 1...Sb7
        • 2.Qg8#
      • 1...Sf7
        • 2.Qa8#
      • 1...d2
        • 2.Rxd2#
      • 1...e3
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XP(b)
      • Refutation
        • P(c);
    • Try
      • Q(B);
      • Vars
        • P(c);OGATEB::QAR2(B)
        • S(f);N_GUARD::QAB(B)
        • S(f);N_GUARD::QAB(B),XS(f)
        • P(a);OGATEB::QAR(B),XP(a)
        • P(b);OGATEB::QAB(B)
      • Refutation
        • S(f);
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XP(b)
      • Vars
        • P(a);OGATEB,XQ(B)::R(A)
      • Refutation
        • P(c);
    • Try
      • Q(B);
      • Threat
        • QAB1(B),XP(b)
      • Refutation
        • P(c);
    • Try
      • Q(B);
      • Threat
        • QAR(B)+K(E)
      • Vars
        • S(f);N_GUARD::QAB(B)
        • S(f);N_GUARD::QAB(B),XS(f)
      • Refutation
        • S(f);
    • Try
      • Q(B);
      • Vars
        • S(f);N_GUARD::QAB1(B)
        • S(f);N_GUARD::QAB1(B),XS(f)
        • P(b);OGATEB::QAB(B)
      • Refutation
        • P(c);
    • Try
      • Q(B);
      • Vars
        • S(f);N_GUARD::QAB(B)
        • S(f);N_GUARD::QAB(B),XS(f)
        • P(a);OGATEB::R(A),XP(a)
        • P(b);OGATEB::QAB(B)
      • Refutation
        • P(c);
  • Actual
    • Q(B);
    • Vars
      • P(c);N_GUARD::QAR1(B)
      • S(f);N_GUARD::QAB(B)
      • S(f);OGATE::QAB(B)
      • P(a);OGATEB::R(A),XP(a)
      • P(b);OGATEB::QAB(B)
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