MESON Chess Problem Database

Problem Display
PID: 105546 (8/P1NK1RPr/1p5p/1p1ppp2/1N2k1P1/2B2RPn/3P2P1/1b1q1n2 w - - 0 1)

Herpai, S Ferenc

Vizugyi Chess Club, 1985

8/P1NK1RPr/1p5p/1p1ppp2/1N2k1P1/2B2RPn/3P2P1/1b1q1n2

#2

12 + 12

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sh2
      • 2.Re3#
    • 1...Se3
      • 2.Rxe3#
    • 1...d4
      • 2.a8Q#
      • 2.a8B#
  • Tries
    • 1.Rf4+?
      • 1...exf4
        • 2.Re7#
      • 1...Sxf4!
    • 1.R3xf5?
      • threat
        • 2.Rxe5#
      • 1...d4
        • 2.a8Q#
        • 2.a8B#
      • 1...Qxg4!
    • 1.R7xf5?
      • threat
        • 2.Rxe5#
      • 1...d4
        • 2.a8Q#
        • 2.a8B#
      • 1...Rxg7+!
    • 1.Re7?
      • threat
        • 2.Rxe5#
      • 1...d4
        • 2.a8Q#
        • 2.a8B#
      • 1...Rxg7!
  • Keys
    • 1.Se8!
      • threat
        • 2.Sd6#
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 2
  • Sets
    • S(c);N_GUARD::R1(D)
    • S(c);N_GUARD::R1(D),XS(c)
    • P(g);::P=Q
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • P(h);S_CUTS(d),XR(D)::R(K)
      • Refutation
        • S(d);XR(D)
    • Try
      • R(D);XP(i)
      • Threat
        • R1(D),XP(h)
      • Vars
        • P(g);::P=Q
      • Refutation
        • Q(b);P_PINR(D),XP(G)
    • Try
      • R(K);P_SPINP(L),XP(i)
      • Threat
        • R1(K),XP(h)
      • Vars
        • P(g);::P=Q
      • Refutation
        • R(l);CHECK,XP(L)
    • Try
      • R(K);P_PINP(h)
      • Threat
        • R1(K),XP(h)
      • Vars
        • P(g);::P=Q
      • Refutation
        • R(l);P_PINR(K),XP(L)
  • Actual
    • S(I);
    • Threat
      • DUALS(2)
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