MESON Chess Problem Database

Problem Display
PID: 63541 (5nQ1/2B2p2/2RN1P2/1Ppk4/2N1p3/2Pp2q1/KP1n4/4R2B w - - 0 1)

Velimirovic, Milan

Schach-Echo, 1975

5nQ1/2B2p2/2RN1P2/1Ppk4/2N1p3/2Pp2q1/KP1n4/4R2B

#2

12 + 8

3771 FIDE Album (1974-1976) 1980

SOLUTION

  • SOUND
  • Sets
    • 1...Ke6
      • 2.Qxf7#
    • 1...Sg6
      • 2.Qxf7#
    • 1...Sd7
      • 2.Qxf7#
    • 1...Sh7
      • 2.Qxf7#
  • Tries
    • 1.Sxf7?
      • threat
        • 2.Sb6#
      • 1...Kxc4
        • 2.Sd6#
      • 1...Qxc7
        • 2.Se3#
      • 1...Sxc4
        • 2.Bxe4#
      • 1...Sd7
        • 2.Sg5#
      • 1...Qd6!
    • 1.Bxe4+?
      • 1...Ke6
        • 2.Qxf7#
      • 1...Sxe4!
    • 1.Rxc5+?
      • 1...Ke6
        • 2.Qxf7#
      • 1...Kxc5!
    • 1.Qg5+?
      • 1...Ke6
        • 2.Qf5#
      • 1...Qe5
        • 2.Qxe5#
      • 1...Qxg5!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Sb6#
      • 1...Kxc4
        • 2.Rxc5#
      • 1...Qxc7
        • 2.Sexd2#
      • 1...Sxc4
        • 2.Sxg3#
      • 1...Qd6
        • 2.Sexd2#
      • 1...Sd7
        • 2.Qxf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • K(f);S_FLIGHT::QAB1(L),XP(g)
    • S(h);N_GUARD::QAB(L),XP(g)
  • Tries
    • Try
      • S(I);XP(g)
      • Threat
        • S(F)
      • Vars
        • K(f);N_SPINP(d),P_SPINP(e),S_FLIGHT,XS(F)::QAB(L)+S(I),DCHECK
        • Q(c);N_GUARD,XB(K)::S(F)
        • S(a);N_GUARD,SBLOCK,XS(F)::B(B),XP(d)
        • S(h);N_GUARD::QAB(L)+S(I)
      • Refutation
        • Q(c);
    • Try
      • B(B);CHECK,P_PINP(g),XP(d)
      • Vars
        • K(f);S_FLIGHT::QAB1(L),XP(g)
      • Refutation
        • S(a);XB(B)
    • Try
      • R(H);CHECK,XP(e)
      • Vars
        • K(f);S_FLIGHT::QAB1(L),XP(g)
      • Refutation
        • K(f);N_SPINP(d),P-FLIGHT,XR(H)
    • Try
      • Q(L);CHECK
      • Vars
        • K(f);S_FLIGHT::QAB1(L)
        • Q(c);N_GUARD,P_SPINQ(c)::QAR1(L),XQ(c)
      • Refutation
        • Q(c);XQ(L)
  • Actual
    • S(I);P_PINP(g),XP(d)
    • Threat
      • S(F)
    • Vars
      • K(f);N_SPINP(g),P_SPINP(e),S_FLIGHT,XS(F)::R1(H),XP(e)
      • Q(c);N_GUARD,XB(K)::B(B)+S(I),XS(a)
      • S(a);N_GUARD,SBLOCK,XS(F)::B(B)+S(I),XQ(c)
      • Q(c);N_GUARD::B(B)+S(I),XS(a)
      • S(h);N_GUARD::QAB(L),XP(g)
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