MESON Chess Problem Database

Problem Display
PID: 64807 (4r3/b2B4/4ppN1/3n1k2/r5R1/3P3P/pRNPPp2/B1Kb2Qq w - - 0 1)

Vukcevich, Milan Radoje

1st Prize, US Problem Bulletin, 1982

4r3/b2B4/4ppN1/3n1k2/r5R1/3P3P/pRNPPp2/B1Kb2Qq

#2

12 + 11

3752 FIDE Album (1980-1982) 1988
5398 My Chess Compositions 2003

SOLUTION

  • SOUND
  • Sets
    • 1...Rxg4
      • 2.Qxg4#
    • 1...Sb4
      • 2.Rf4#
    • 1...Sb6
      • 2.Se3#
  • Tries
    • 1.Rbb4?
      • threat
        • 2.Sh4#
      • 1...Qxh3
        • 2.e4#
      • 1...Bd4
        • 2.Sxd4#
      • 1...Sc3
        • 2.Rgf4#
      • 1...Rh8!
    • 1.Rb6?
      • threat
        • 2.Sh4#
      • 1...Rxg4
        • 2.Qxg4#
      • 1...Rd4
        • 2.Sxd4#
      • 1...Rh8
        • 2.Bxe6#
      • 1...Sc3
        • 2.Se3#
      • 1...Qxh3!
    • 1.Rf4+?
      • 1...Sxf4
        • 2.Qg4#
      • 1...Rxf4!
  • Keys
    • 1.Rb5!
      • threat
        • 2.Sh4#
      • 1...Qxh3
        • 2.Rxd5#
      • 1...Rxg4
        • 2.Qxg4#
      • 1...Rd4
        • 2.Se3#
      • 1...Rh8
        • 2.Se7#
      • 1...Bd4
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(e);OGATE,XR(J)::QAB1(C),XR(e)
    • S(f);N_GUARD,S_CUTR(e)::R1(J)
    • S(f);N_GUARD,S_CUTB(j)::S(E)
  • Tries
    • Try
      • R(D);
      • Threat
        • S(K)
      • Vars
        • Q(b);N_GUARD,XP(I)::P(G)
        • B(j);N_GUARD::S(E),XB(j)
        • S(f);N_GUARD::R1(J)
      • Refutation
        • R(k);
    • Try
      • R(D);
      • Threat
        • S(K)
      • Vars
        • R(e);OGATE,XR(J)::QAB1(C),XR(e)
        • R(e);N_GUARD::S(E),XR(e)
        • R(k);N_GUARD::B(L),XP(h)
        • S(f);N_GUARD::S(E)
      • Refutation
        • Q(b);XP(I)
    • Try
      • R(J);CHECK
      • Vars
        • S(f);XR(J)::QAB1(C)
      • Refutation
        • R(e);XR(J)
  • Actual
    • R(D);P_PINS(f)
    • Threat
      • S(K)
    • Vars
      • Q(b);N_GUARD,XP(I)::R(D),XS(f)
      • R(e);OGATE,XR(J)::QAB1(C),XR(e)
      • R(e);S_CUTB(j)::S(E)
      • R(k);N_GUARD::S(K)
      • B(j);S_CUTR(e)::R1(J)
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