MESON Chess Problem Database

Problem Display
PID: 138540 (1B4B1/5R2/1P2R1P1/2pN2r1/PPk4q/2p5/4N3/KQ3n2 w - - 0 1)

Nesic, Milivoj S

Liga Problemista, 1985/2

1B4B1/5R2/1P2R1P1/2pN2r1/PPk4q/2p5/4N3/KQ3n2

#2

12 + 6

6490 yacpdb 2011

SOLUTION

  • SOUND
  • Sets
    • 1...Sd2
      • 2.Se3#
    • 1...Sh2
      • 2.Se3#
    • 1...Se3
      • 2.Sxe3#
    • 1...Sg3
      • 2.Se3#
  • Tries
    • 1.Re3?
      • threat
        • 2.Qa2#
      • 1...Kxd5
        • 2.Rf6#
      • 1...Rxd5
        • 2.Rxc3#
      • 1...Sxe3
        • 2.Sxe3#
      • 1...cxb4
        • 2.Rc7#
      • 1...Qe1
        • 2.Rf4#
      • 1...Sd2!
    • 1.Re4+?
      • 1...Kxd5
        • 2.Rf6#
      • 1...Qxe4!
    • 1.Rf4+?
      • 1...Kxd5
        • 2.Sxc3#
        • 2.Ref6#
        • 2.Qd3#
        • 2.Qe4#
      • 1...Qxf4!
    • 1.Qb3+?
      • 1...Kd3
        • 2.Qxc3#
      • 1...Kxb3!
  • Keys
    • 1.Rf3!
      • threat
        • 2.Qa2#
      • 1...Kxd5
        • 2.Ref6#
      • 1...Rxd5
        • 2.Rxc3#
      • 1...cxb4
        • 2.Rc6#
      • 1...Qe1
        • 2.Re4#
      • 1...Sd2
        • 2.Se3#
      • 1...Se3
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::S(F)
    • S(a);N_GUARD::S(F),XS(a)
  • Tries
    • Try
      • R(H);
      • Threat
        • QAB(B)
      • Vars
        • K(c);OGATEB,S_FLIGHT,XS(F)::B(L)+R(J)
        • R(f);SBLOCK,XS(F)::R1(H),XP(b)
        • S(a);XR(H)::S(F),XS(a)
        • P(e);OGATEB,XP(E)::R(J)
        • Q(d);N_GUARD,P_PINQ(B)::R(J)
      • Refutation
        • S(a);
    • Try
      • R(H);CHECK
      • Vars
        • K(c);S_FLIGHT,XS(F)::B(L)+R(J)
      • Refutation
        • Q(d);XR(H)
    • Try
      • R(J);CHECK
      • Refutation
        • Q(d);XR(J)
    • Try
      • Q(B);CHECK
      • Vars
        • K(c);P_SPINP(b),S_FLIGHT::QAR1(B),XP(b)
      • Refutation
        • K(c);S_FLIGHT,XQ(B)
  • Actual
    • R(J);
    • Threat
      • QAB(B)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XS(F)::B(L)+R(H)
      • R(f);SBLOCK,XS(F)::R1(J),XP(b)
      • P(e);OGATEB,XP(E)::R(H)
      • Q(d);N_GUARD,P_PINQ(B)::R(H)
      • S(a);N_GUARD::S(F)
      • S(a);N_GUARD::S(F),XS(a)
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