MESON Chess Problem Database

Problem Display
PID: 225727 (3Q1n2/3p4/3p4/K1RBPp2/1p1k1N2/1P6/2P2p1B/5N2 w - - 0 1)

Reiprich, Gejza

Praca, 1955

3Q1n2/3p4/3p4/K1RBPp2/1p1k1N2/1P6/2P2p1B/5N2

#2

10 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxc5
      • 2.Qb6#
    • 1...dxe5
      • 2.Rc4#
  • Tries
    • 1.Qh4?
      • threat
        • 2.Se6#
      • 1...Kxc5
        • 2.Qxf2#
      • 1...Kxe5
        • 2.Sd3#
        • 2.Sg6#
        • 2.Qh8#
      • 1...Se6
        • 2.Sxe6#
      • 1...dxc5!
    • 1.Qf6?
      • threat
        • 2.Rc4#
      • 1...dxc5
        • 2.e6#
      • 1...Kxc5!
    • 1.c3+?
      • 1...Kxc5
        • 2.Qb6#
        • 2.Qc7#
        • 2.Qc8#
      • 1...Kxe5
        • 2.Sd3#
        • 2.Sg6#
      • 1...bxc3!
  • Keys
    • 1.Qxd7!
      • 1...Kxc5
        • 2.Qa7#
      • 1...Kxe5
        • 2.Qg7#
      • 1...Sxd7
        • 2.Se6#
      • 1...dxc5
        • 2.Se2#
      • 1...dxe5
        • 2.Rc4#
      • 1...Se6
        • 2.Sxe6#
      • 1...Sg6
        • 2.Se6#
      • 1...Sh7
        • 2.Se6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • K(c);OGATEB,S_FLIGHT,XR(G)::QAB1(J)
    • P(e);SBLOCK,XP(I)::R1(G)
  • Tries
    • Try
      • Q(J);
      • Threat
        • QAR(J)+S(E),DCHECK
      • Vars
        • K(c);S_FLIGHT,XR(G)::QAB(J),XP(a)
        • S(g);::QAR(J)+S(E),DCHECK,XS(g)
      • Refutation
        • P(e);XR(G)
    • Try
      • Q(J);
      • Threat
        • R1(G)
      • Vars
        • P(e);SBLOCK,XR(G)::QAB(J)+P(I)
      • Refutation
        • K(c);S_FLIGHT,XR(G)
    • Try
      • P(B);CHECK
      • Refutation
        • P(b);XP(B)
  • Actual
    • Q(J);XP(f)
    • Vars
      • K(c);OGATEB,S_FLIGHT,XR(G)::QAB(J)
      • K(c);OGATEB,S_FLIGHT,XP(I)::QAB(J)
      • S(g);N_GUARD,XQ(J)::S(E)
      • P(e);SBLOCK,XR(G)::S(E)
      • P(e);SBLOCK,XP(I)::R1(G)
      • S(g);N_GUARD::S(E),XS(g)
      • S(g);N_GUARD::S(E)
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Developed and maintained by Brian Stephenson.
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