MESON Chess Problem Database

Problem Display
PID: 182351 (5N2/4Bp2/4P3/4k3/3Rp2N/2K5/3P1P2/8 w - - 0 1)

von Sponer, Gyorgy Janos Andor

Pesti Naplo, 1906

5N2/4Bp2/4P3/4k3/3Rp2N/2K5/3P1P2/8

#2

8 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.f4#
    • 1...fxe6
      • 2.Sfg6#
    • 1...f5
      • 2.Shg6#
    • 1...f6
      • 2.Bd6#
  • Tries
    • 1.Kc4?
      • 1...fxe6
        • 2.Sfg6#
      • 1...e3
        • 2.f4#
      • 1...f5
        • 2.Shg6#
      • 1...f6
        • 2.Bd6#
      • 1...Kf4!
    • 1.Sfg6+?
      • 1...Kxe6
        • 2.Rd6#
      • 1...fxg6!
    • 1.Bg5?
      • 1...fxe6
        • 2.Sfg6#
        • 2.Sd7#
      • 1...e3
        • 2.f4#
      • 1...f5
        • 2.Shg6#
      • 1...f6!
    • 1.Bd8?
      • 1...fxe6
        • 2.Sfg6#
      • 1...e3
        • 2.f4#
      • 1...f5
        • 2.Shg6#
      • 1...f6
        • 2.Bc7#
      • 1...Kf4!
    • 1.exf7?
      • 1...e3
        • 2.f4#
      • 1...Kf4!
  • Keys
    • 1.d3!
      • 1...Kf4
        • 2.Rxe4#
      • 1...exd3
        • 2.f4#
      • 1...fxe6
        • 2.Sfg6#
      • 1...e3
        • 2.f4#
      • 1...f5
        • 2.Shg6#
      • 1...f6
        • 2.Bd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • P(a);N_GUARD::P(B)
    • P(c);N_GUARD,SBLOCK,XP(F)::S(H)
    • P(c);N_GUARD,SBLOCK::S(E)
    • P(c);SBLOCK::B(G)
  • Tries
    • Try
      • K(C);P-FLIGHT
      • Vars
        • P(c);N_GUARD,SBLOCK,XP(F)::S(H)
        • P(a);N_GUARD::P(B)
        • P(c);N_GUARD,SBLOCK::S(E)
        • P(c);SBLOCK::B(G)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • S(H);CHECK
      • Vars
        • K(b);P-FLIGHT,XP(F)::R1(D)
      • Refutation
        • P(c);XS(H)
    • Try
      • B(G);
      • Vars
        • P(a);N_GUARD::P(B)
        • P(c);N_GUARD,SBLOCK::S(E)
      • Refutation
        • P(c);
    • Try
      • B(G);
      • Vars
        • P(c);N_GUARD,SBLOCK,XP(F)::S(H)
        • P(a);N_GUARD::P(B)
        • P(c);N_GUARD,SBLOCK::S(E)
        • P(c);SBLOCK::B(G)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
    • Try
      • P(F);XP(c)
      • Vars
        • P(a);N_GUARD::P(B)
      • Refutation
        • K(b);P_SPINP(a),S_FLIGHT
  • Actual
    • P(A);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::R1(D),XP(a)
      • P(a);N_GUARD,XP(A)::P(B)
      • P(c);N_GUARD,SBLOCK,XP(F)::S(H)
      • P(a);N_GUARD::P(B)
      • P(c);N_GUARD,SBLOCK::S(E)
      • P(c);SBLOCK::B(G)
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