MESON Chess Problem Database

Problem Display
PID: 71376 (3r4/q4p2/1pR3N1/1P1kB3/1p1Np3/7B/2PP1QnK/3r3b w - - 0 1)

Janevski, Zivko

Probleemblad, 2006

3r4/q4p2/1pR3N1/1P1kB3/1p1Np3/7B/2PP1QnK/3r3b

#2

10 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qb8
      • 2.Qxf7#
    • 1...Qa1
      • 2.Qxf7#
    • 1...Qa2
      • 2.Qxf7#
    • 1...Qa3
      • 2.Qxf7#
    • 1...Qa4
      • 2.Qxf7#
    • 1...Qa5
      • 2.Qxf7#
    • 1...Qa6
      • 2.Qxf7#
    • 1...Qa8
      • 2.Qxf7#
    • 1...b3
      • 2.c4#
    • 1...e3
      • 2.Qf3#
    • 1...f6
      • 2.Be6#
  • Tries
    • 1.Se2?
      • threat
        • 2.Qd4#
      • 1...e3
        • 2.Qf3#
      • 1...Qa1
        • 2.Qxf7#
      • 1...Se3
        • 2.Sef4#
      • 1...Rxd2!
    • 1.Sb3?
      • threat
        • 2.Qd4#
      • 1...Rxd2
        • 2.Qxd2#
      • 1...e3
        • 2.Qf3#
      • 1...Qa1
        • 2.Qxf7#
      • 1...Se3!
    • 1.Sf3?
      • threat
        • 2.Qd4#
      • 1...Rxd2
        • 2.Qxd2#
      • 1...Qa1
        • 2.Se7#
      • 1...Se3
        • 2.Sf4#
      • 1...e3!
    • 1.Sf5?
      • threat
        • 2.Qd4#
      • 1...Rxd2
        • 2.Qxd2#
      • 1...e3
        • 2.Qf3#
      • 1...Qa1
        • 2.Sfe7#
      • 1...Se3
        • 2.Sxe3#
      • 1...Rd6!
    • 1.Se7+?
      • 1...Kxe5
        • 2.Qf6#
      • 1...Qxe7!
  • Keys
    • 1.Se6!
      • threat
        • 2.Qd4#
      • 1...Rxd2
        • 2.Qxd2#
      • 1...e3
        • 2.Qf3#
      • 1...Qa1
        • 2.Sc7#
      • 1...Se3
        • 2.Sef4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 9
  • Sets
    • Q(h);N_GUARD,P_PINB(H)::QAB(C),XP(i)
    • Q(h);N_GUARD::QAB(C),XP(i)
    • P(d);N_GUARD::P(A)
    • P(e);OGATEB::QAB(C)
    • P(i);N_GUARD::B(E)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAR1(C)
      • Vars
        • P(e);OGATEB::QAB(C)
        • Q(h);N_GUARD::QAB(C),XP(i)
        • S(c);N_GUARD::S(F)
      • Refutation
        • R(a);XP(B)
    • Try
      • S(F);
      • Threat
        • QAR1(C)
      • Vars
        • R(a);OGATE,XP(B)::QAR(C),XR(a)
        • P(e);OGATEB::QAB(C)
        • Q(h);N_GUARD::QAB(C),XP(i)
      • Refutation
        • S(c);
    • Try
      • S(F);
      • Threat
        • QAR1(C)
      • Vars
        • R(a);OGATE,XP(B)::QAR(C),XR(a)
        • Q(h);N_GUARD::S(J)
        • S(c);N_GUARD::S(J)
      • Refutation
        • P(e);
    • Try
      • S(F);
      • Threat
        • QAR1(C)
      • Vars
        • R(a);OGATE,XP(B)::QAR(C),XR(a)
        • P(e);OGATEB::QAB(C)
        • Q(h);N_GUARD::S(F)
        • S(c);N_GUARD::S(F),XS(c)
      • Refutation
        • R(j);
    • Try
      • S(J);CHECK
      • Vars
        • K(f);P-FLIGHT,XB(H)::QAB1(C)
      • Refutation
        • Q(h);XS(J)
  • Actual
    • S(F);
    • Threat
      • QAR1(C)
    • Vars
      • R(a);OGATE,XP(B)::QAR(C),XR(a)
      • P(e);OGATEB::QAB(C)
      • Q(h);N_GUARD::S(F)
      • S(c);N_GUARD::S(F)
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