MESON Chess Problem Database

Problem Display
PID: 142095 (8/2pK4/2p5/3p4/R1PkP1Rp/7Q/4P3/8 w - - 0 1)

Chepizhni, Viktor Ivanovich

1st Prize=, Magadan-60 JT (Kudesnik), 1999

8/2pK4/2p5/3p4/R1PkP1Rp/7Q/4P3/8

#2

7 + 5

6167 Viktor Chepizhny 2007

SOLUTION

  • SOUND
  • Tries
    • 1.Ra5?
      • 1...Kxc4
        • 2.exd5#
      • 1...Ke5
        • 2.Qc3#
      • 1...dxc4
        • 2.e5#
      • 1...dxe4
        • 2.Qd3#
      • 1...c5!
    • 1.cxd5+?
      • 1...Ke5
        • 2.Qc3#
      • 1...Kc5!
    • 1.exd5+?
      • 1...Kc5
        • 2.Qe3#
      • 1...Ke5!
  • Keys
    • 1.Rg5!
      • 1...Kxe4
        • 2.cxd5#
      • 1...Kc5
        • 2.Qe3#
      • 1...dxc4
        • 2.Qd3#
      • 1...dxe4
        • 2.c5#
      • 1...c5
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(C);
      • Vars
        • K(a);P-FLIGHT,XP(D)::R(F)+P(E),XP(c)
        • K(a);P_SPINP(c),S_FLIGHT::QAB(B)
        • P(c);SBLOCK,XP(D)::R(F)+P(E)
        • P(c);P_SPINP(c),XP(E)::QAR1(B)
      • Refutation
        • P(d);
    • Try
      • P(D);CHECK,XP(c)
      • Vars
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(E);CHECK,XP(c)
      • Vars
        • K(a);S_FLIGHT::QAB(B)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • R(F);
    • Vars
      • K(a);P-FLIGHT,XP(E)::R(C)+P(D),XP(c)
      • K(a);P_SPINP(c),S_FLIGHT::QAB(B)
      • P(c);P_SPINP(c),XP(D)::QAR1(B)
      • P(c);SBLOCK,XP(E)::R(C)+P(D)
      • P(d);SBLOCK::QAR1(B)
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