MESON Chess Problem Database

Problem Display
PID: 7803 (Q7/4p3/4pnB1/2P2R2/1P2N2p/2Pk3K/5P2/1R2B3 w - - 0 1)

Velimirovic, Milan

3rd HM., The Problemist, 1993

Q7/4p3/4pnB1/2P2R2/1P2N2p/2Pk3K/5P2/1R2B3

#2

11 + 5

3681 FIDE Album (1992-1994) 2001
81 Chess 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Ke2
      • 2.Qa6#
    • 1...Kc4
      • 2.Qa6#
  • Tries
    • 1.Rf4?
      • 1...Kc2
        • 2.Sxf6#
      • 1...Ke2
        • 2.Qa6#
      • 1...Kc4
        • 2.Sd6#
      • 1...Sxe4
        • 2.Qxe4#
      • 1...Sg4
        • 2.Sg3#
      • 1...Sd5
        • 2.Sg3#
      • 1...Sh5
        • 2.Sg3#
      • 1...Sd7
        • 2.Sg3#
      • 1...Sh7
        • 2.Sg3#
      • 1...Se8
        • 2.Sg3#
      • 1...Sg8
        • 2.Sg3#
      • 1...e5!
    • 1.Qa6+?
      • 1...Kxe4
        • 2.Qe2#
        • 2.Qc4#
      • 1...Kc2!
  • Keys
    • 1.Re5!
      • 1...Kc2
        • 2.Sxf6#
      • 1...Ke2
        • 2.Sg3#
      • 1...Kc4
        • 2.Qa6#
      • 1...Sxe4
        • 2.Qxe4#
      • 1...Sg4
        • 2.Sd6#
      • 1...Sd5
        • 2.Sd6#
      • 1...Sh5
        • 2.Sd6#
      • 1...Sd7
        • 2.Sd6#
      • 1...Sh7
        • 2.Sd6#
      • 1...Se8
        • 2.Sd6#
      • 1...Sg8
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
    • K(a);S_FLIGHT::QAB(K)
  • Tries
    • Try
      • R(I);
      • Vars
        • K(a);S_FLIGHT::B(J)+S(G),XS(d)
        • K(a);S_FLIGHT::QAB(K)
        • K(a);S_FLIGHT::R(I)+S(G),DCHECK
        • S(d);OGATE,P_SPINS(d),XS(G)::QAB1(K),XS(d)
        • S(d);N_GUARD::B(J)+S(G)
      • Refutation
        • P(c);
    • Try
      • Q(K);CHECK
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(I);
    • Vars
      • K(a);S_FLIGHT::B(J)+S(G),XS(d)
      • K(a);S_FLIGHT::R(I)+S(G),DCHECK
      • K(a);S_FLIGHT::QAB(K)
      • S(d);OGATE,P_SPINS(d),XS(G)::QAB1(K),XS(d)
      • S(d);N_GUARD::B(J)+S(G)
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