MESON Chess Problem Database

Problem Display
PID: 41029 (2R1N3/2r5/P1kPB3/b5Rr/2p2qp1/n4N2/K5Q1/6B1 w - - 0 1)

Kovacevic, Marjan

3rd Prize, The Problemist, 1993

2R1N3/2r5/P1kPB3/b5Rr/2p2qp1/n4N2/K5Q1/6B1

#2

10 + 8

3681 FIDE Album (1992-1994) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Se1#
      • 2.Sd2#
      • 2.Sh2#
      • 2.Sh4#
    • 1...Qd2+
      • 2.Sxd2#
    • 1...Qh2
      • 2.Sxh2#
    • 1...Be1
      • 2.Rxc7#
    • 1...Bd2
      • 2.Rxc7#
    • 1...Bc3
      • 2.Rxc7#
    • 1...Bb4
      • 2.Rxc7#
    • 1...Bb6
      • 2.Sd4#
    • 1...Sb5
      • 2.Se5#
  • Tries
    • 1.Se1+?
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qf3!
    • 1.Sd2+?
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qf3!
    • 1.Sh2+?
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qf3!
    • 1.Sh4+?
      • 1...Qe4
        • 2.Qxe4#
      • 1...Qf3!
  • Keys
    • 1.Qb2!
      • threat
        • 2.Qb7#
      • 1...Qd2
        • 2.Se5#
      • 1...Qh2
        • 2.Sd4#
      • 1...Rh2
        • 2.Rc5#
      • 1...Bb4
        • 2.Rxc7#
      • 1...Bb6
        • 2.Qxb6#
      • 1...Sb5
        • 2.Qxb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • Q(c);CHECK,N_GUARD::QAB(C)+S(D),XQ(c)
    • Q(c);N_GUARD,P_PINQ(C)::QAB(C)+S(D),XQ(c)
    • B(e);N_GUARD::R1(I),XR(h)
    • B(e);SBLOCK::QAB(C)+S(D),DCHECK
    • S(a);SBLOCK::QAB(C)+S(D),DCHECK
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::QAB(C),XQ(c)
      • Refutation
        • Q(c);P_SPINQ(c)
    • Try
      • S(D);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::QAB(C),XQ(c)
      • Refutation
        • Q(c);P_SPINQ(c)
    • Try
      • S(D);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::QAB(C),XQ(c)
      • Refutation
        • Q(c);P_SPINQ(c)
    • Try
      • S(D);CHECK
      • Vars
        • Q(c);N_GUARD,P_SPINQ(c)::QAB(C),XQ(c)
      • Refutation
        • Q(c);P_SPINQ(c)
  • Actual
    • Q(C);
    • Threat
      • QAB1(C)
    • Vars
      • Q(c);N_GUARD,P_PINQ(C)::S(D)
      • R(f);N_GUARD,P_PINQ(C)::R1(E)
      • B(e);N_GUARD::R1(I),XR(h)
      • B(e);N_GUARD::QAR1(C),XB(e)
      • S(a);N_GUARD::QAB1(C),XS(a)
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