MESON Chess Problem Database

Problem Display
PID: 269552 (8/3p4/1B1P4/1kp1p3/2N1P3/pNP1p3/P1P1B3/KR6 w - - 0 1)

Herpai, S Ferenc

British Chess Magazine, 1934

8/3p4/1B1P4/1kp1p3/2N1P3/pNP1p3/P1P1B3/KR6

#2

11 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Ka4
      • 2.Sxc5#
    • 1...Ka6
      • 2.Sxc5#
    • 1...Kc6
      • 2.Sba5#
  • Tries
    • 1.Sca5+?
      • 1...Ka4
        • 2.Sxc5#
      • 1...c4
        • 2.Sc5#
      • 1...Kxb6!
    • 1.Sxe5+?
      • 1...Ka4
        • 2.Sxc5#
      • 1...c4
        • 2.Sc5#
      • 1...Kxb6!
    • 1.Bf1?
      • 1...Ka4
        • 2.Sxc5#
      • 1...Ka6
        • 2.Sxc5#
      • 1...Kc6
        • 2.Sba5#
      • 1...e2!
    • 1.Bd3?
      • 1...Ka4
        • 2.Sxc5#
      • 1...Ka6
        • 2.Sxc5#
      • 1...Kc6
        • 2.Sba5#
      • 1...e2!
    • 1.Ba7?
      • 1...Ka4
        • 2.Sxc5#
        • 2.Sb6#
      • 1...Kc6
        • 2.Sba5#
      • 1...Ka6!
    • 1.Bc7?
      • 1...Ka4
        • 2.Sxc5#
        • 2.Sb6#
      • 1...Kc6
        • 2.Sba5#
        • 2.Sca5#
      • 1...Ka6!
    • 1.Bd8?
      • 1...Ka4
        • 2.Sxc5#
        • 2.Sb6#
      • 1...Kc6
        • 2.Sba5#
      • 1...Ka6!
    • 1.Rb2?
      • 1...Ka4
        • 2.Sxc5#
      • 1...Ka6
        • 2.Sxc5#
      • 1...Kc6
        • 2.Sba5#
      • 1...axb2+!
  • Keys
    • 1.Bxc5!
      • 1...Ka4
        • 2.Sb6#
      • 1...Ka6
        • 2.Sca5#
      • 1...Kc6
        • 2.Sca5#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 3
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(c);N_GUARD,S_FLIGHT::S(F),XP(d)
    • K(c);N_GUARD,S_FLIGHT::S(F)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • K(c);S_FLIGHT::S(F),XP(d)
        • P(d);P_SPINP(d)::R(B)+S(F)
      • Refutation
        • K(c);P-FLIGHT,XB(J)
    • Try
      • S(H);CHECK,XP(e)
      • Vars
        • K(c);S_FLIGHT::S(F),XP(d)
        • P(d);P_SPINP(d)::R(B)+S(F)
      • Refutation
        • K(c);P-FLIGHT,XB(J)
    • Try
      • B(E);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::S(F),XP(d)
        • K(c);N_GUARD,S_FLIGHT::S(F)
      • Refutation
        • P(b);
    • Try
      • B(E);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::S(F),XP(d)
        • K(c);N_GUARD,S_FLIGHT::S(F)
      • Refutation
        • P(b);
    • Try
      • B(J);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::S(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(J);
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • B(J);
      • Vars
        • K(c);N_GUARD,S_FLIGHT::S(F)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(B);
      • Vars
        • K(c);N_GUARD,S_CUTP(a),S_FLIGHT::S(F),XP(d)
        • K(c);N_GUARD,S_CUTP(a),S_FLIGHT::S(F)
      • Refutation
        • P(a);CHECK,XR(B)
  • Actual
    • B(J);XP(d)
    • Vars
      • K(c);N_GUARD,S_FLIGHT::S(H)
      • K(c);N_GUARD,S_FLIGHT::B(E)+S(H)
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