MESON Chess Problem Database

Problem Display
PID: 23916 (1r6/Rb1N1n1R/3k1P2/1Q1N1P2/2P2P2/5p2/3p1r2/1Kb3B1 w - - 0 1)

Kovacevic, Marjan

1st Prize, Muller (Dieter)-50 JT, 1996-1997

1r6/Rb1N1n1R/3k1P2/1Q1N1P2/2P2P2/5p2/3p1r2/1Kb3B1

#2

11 + 8

5417 FIDE Album (1995-1997) 2004
56 The Problemist 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Rf1
      • 2.Bc5#
    • 1...Re2
      • 2.Bc5#
    • 1...Rg2
      • 2.Bc5#
    • 1...Rh2
      • 2.Bc5#
    • 1...Bxd5
      • 2.c5#
    • 1...Bc6
      • 2.Qxb8#
    • 1...Se5
      • 2.Qc5#
      • 2.fxe5#
    • 1...Sg5
      • 2.Qc5#
    • 1...Sh6
      • 2.Qc5#
    • 1...Sd8
      • 2.Qc5#
    • 1...Sh8
      • 2.Qc5#
  • Tries
    • 1.Se5?
      • threat
        • 2.Sxf7#
        • 2.Qb4#
      • 1...Bxd5
        • 2.Rd7#
        • 2.c5#
      • 1...Rc8
        • 2.Sxf7#
      • 1...Rf8
        • 2.Qb4#
      • 1...Ba3
        • 2.Sxf7#
      • 1...Ba6
        • 2.Sxf7#
        • 2.Rd7#
      • 1...Bc6
        • 2.Sxf7#
      • 1...Ba8
        • 2.Sxf7#
        • 2.Rd7#
      • 1...Bc8
        • 2.Sxf7#
      • 1...Sg5
        • 2.Rd7#
        • 2.Qb4#
      • 1...Sh6
        • 2.Rd7#
        • 2.Qb4#
      • 1...Sd8
        • 2.Rd7#
        • 2.Qb4#
      • 1...Sh8
        • 2.Rd7#
        • 2.Qb4#
      • 1...Sxe5!
    • 1.Qb4+?
      • 1...Kc6
        • 2.Sxb8#
      • 1...Kxd7!
    • 1.Qb6+?
      • 1...Bc6
        • 2.Qxb8#
      • 1...Kxd7!
  • Keys
    • 1.Sc5!
      • threat
        • 2.Se4#
      • 1...Bxd5
        • 2.Rd7#
      • 1...Re2
        • 2.Qd7#
      • 1...Re8
        • 2.Sxb7#
      • 1...Sg5
        • 2.Rd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 3
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • R(c);OGATE::B(B)
    • B(f);P_PINQ(E),SBLOCK,XS(F)::P(C)
    • B(f);OGATE,P_PINQ(E),SBLOCK::QAB(E),XR(h)
    • S(g);::QAB1(E)
  • Tries
    • Try
      • S(J);
      • Threat
        • DUALS(2)
      • Vars
        • R(h);::S(J),XS(g)
        • R(h);::QAB(E)
        • B(a);::S(J),XS(g)
        • B(f);P_PINQ(E)::S(J),XS(g)
      • Refutation
        • S(g);XS(J)
    • Try
      • Q(E);CHECK
      • Vars
        • K(e);P-FLIGHT::S(J),XR(h)
      • Refutation
        • K(e);P-FLIGHT,P_SPINB(f),P_SPINS(g),XS(J)
    • Try
      • Q(E);CHECK
      • Vars
        • B(f);OGATE,P_PINQ(E),P_SPINB(f),SBLOCK::QAB(E),XR(h)
      • Refutation
        • K(e);P-FLIGHT,P_SPINB(f),P_SPINS(g),XS(J)
  • Actual
    • S(J);
    • Threat
      • S(J)
    • Vars
      • B(f);OGATE,P_PINQ(E),XS(F)::R1(I)
      • R(c);::QAR1(E)
      • R(h);N_GUARD::S(J),XB(f)
      • S(g);OGATE::R1(K)
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