MESON Chess Problem Database

Problem Display
PID: 266750 (8/P7/3ppp2/3Pp2P/1PN1k1pP/1KP3P1/4N3/3R1R2 w - - 0 1)

Chepizhni, Viktor Ivanovich

Zadachi i Etyudi, 2011

8/P7/3ppp2/3Pp2P/1PN1k1pP/1KP3P1/4N3/3R1R2

#2

12 + 6

SOLUTION

  • SOUND
  • Tries
    • 1.Sc1?
      • 1...exd5
        • 2.Rde1#
      • 1...f5!
    • 1.Sg1?
      • 1...f5
        • 2.Rfe1#
      • 1...exd5!
    • 1.Sd4?
      • 1...Kxd5
        • 2.a8Q#
        • 2.a8B#
      • 1...exd4
        • 2.Rxd4#
      • 1...exd5
        • 2.Rfe1#
      • 1...f5!
    • 1.Sf4?
      • 1...Kf5
        • 2.Sxd6#
      • 1...exf4
        • 2.Rxf4#
      • 1...f5
        • 2.Rde1#
      • 1...exd5!
    • 1.Rfe1?
      • 1...Kf5
        • 2.Sxd6#
      • 1...exd5
        • 2.Sd4#
      • 1...f5
        • 2.Sg1#
      • 1...Kf3!
    • 1.a8Q?
      • 1...exd5
        • 2.Qxd5#
      • 1...f5!
    • 1.a8B?
      • 1...exd5
        • 2.Bxd5#
      • 1...f5!
  • Keys
    • 1.Rde1!
      • 1...Kd3
        • 2.Sc1#
      • 1...Kxd5
        • 2.a8Q#
        • 2.a8B#
      • 1...exd5
        • 2.Sc1#
      • 1...f5
        • 2.Sf4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);
      • Vars
        • P(e);SBLOCK,XP(J)::R(A)
      • Refutation
        • P(f);
    • Try
      • S(C);
      • Vars
        • P(f);SBLOCK::R(B)
      • Refutation
        • P(e);XP(J)
    • Try
      • S(C);
      • Vars
        • K(a);S_FLIGHT,XP(J)::P=Q
        • P(c);OGATE,XS(C)::R1(A),XP(c)
        • P(e);SBLOCK,XP(J)::R(B)
      • Refutation
        • P(f);
    • Try
      • S(C);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::S(H),XP(d)
        • P(c);OGATE,XS(C)::R1(B),XP(c)
        • P(f);SBLOCK::R(A)
      • Refutation
        • P(e);XP(J)
    • Try
      • R(B);
      • Vars
        • K(a);N_GUARD,S_FLIGHT::S(H),XP(d)
        • P(e);SBLOCK,XP(J)::R(B)+S(C)
        • P(f);SBLOCK::R(B)+S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • P(L);
      • Vars
        • P(e);OGATE,P_SPINP(e),XP(J)::QAB1(L),XP(e)
      • Refutation
        • P(f);
    • Try
      • P(L);
      • Vars
        • P(e);OGATE,P_SPINP(e),XP(J)::B(L),XP(e)
      • Refutation
        • P(f);
  • Actual
    • R(A);
    • Vars
      • K(a);N_GUARD,S_FLIGHT::S(C)
      • K(a);S_FLIGHT,XP(J)::P=Q
      • P(e);SBLOCK,XP(J)::R(A)+S(C)
      • P(f);SBLOCK::R(A)+S(C)
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