MESON Chess Problem Database

Problem Display
PID: 226668 (8/3p4/1p1B3p/1P5R/2pk1P2/P2b2N1/B2R4/K4N2 w - - 0 1)

Boven, Dirk

Schaffhauser Nachrichten, 1983

8/3p4/1p1B3p/1P5R/2pk1P2/P2b2N1/B2R4/K4N2

#2

10 + 6

16895 Schweizer Schachkompositionen (1976-1986) (Henneberger) 1989

SOLUTION

  • SOUND
  • Sets
    • 1...Kc3
      • 2.Be5#
    • 1...c3
      • 2.Rd5#
  • Tries
    • 1.Be7?
      • threat
        • 2.Bf6#
      • 1...Kc3
        • 2.Bf6#
      • 1...d5!
    • 1.Bf8?
      • threat
        • 2.Bg7#
      • 1...Kc3
        • 2.Bg7#
      • 1...d5!
    • 1.Rd1?
      • 1...c3
        • 2.Rd5#
      • 1...Kc3!
    • 1.Rd5+?
      • 1...Kc3
        • 2.Bb4#
        • 2.Be5#
      • 1...Kxd5!
    • 1.Rf5?
      • 1...Kc3
        • 2.Be5#
      • 1...c3
        • 2.Rd5#
      • 1...h5!
    • 1.Rxh6?
      • 1...Kc3
        • 2.Be5#
      • 1...Kd5
        • 2.Rxd3#
      • 1...c3!
    • 1.a4?
      • 1...c3
        • 2.Rd5#
      • 1...Kc3!
  • Keys
    • 1.f5!
      • 1...Kc3
        • 2.Be5#
      • 1...Kd5
        • 2.Rxd3#
      • 1...c3
        • 2.Rh4#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINB(a),S_FLIGHT::B(J)
    • P(b);SBLOCK::R1(I)
  • Tries
    • Try
      • B(J);
      • Threat
        • B(J)
      • Vars
        • K(c);N_SPINB(a),S_FLIGHT::B(J)
      • Refutation
        • P(f);
    • Try
      • B(J);
      • Threat
        • B(J)
      • Vars
        • K(c);N_SPINB(a),S_FLIGHT::B(J)
      • Refutation
        • P(f);
    • Try
      • R(D);
      • Vars
        • P(b);SBLOCK::R1(I)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
    • Try
      • R(I);CHECK
      • Refutation
        • K(c);P-FLIGHT,P_SPINP(b),XR(I)
    • Try
      • R(I);
      • Vars
        • K(c);N_SPINB(a),S_FLIGHT::B(J)
        • P(b);SBLOCK::R1(I)
      • Refutation
        • P(e);
    • Try
      • R(I);XP(e)
      • Vars
        • K(c);N_SPINB(a),S_FLIGHT::B(J)
        • K(c);P-FLIGHT,P_SPINP(b)::R(D),XB(a)
      • Refutation
        • P(b);
    • Try
      • P(E);
      • Vars
        • P(b);SBLOCK::R1(I)
      • Refutation
        • K(c);N_SPINB(a),S_FLIGHT
  • Actual
    • P(G);
    • Vars
      • K(c);N_SPINB(a),S_FLIGHT::B(J)
      • K(c);P-FLIGHT,P_SPINP(b)::R(D),XB(a)
      • P(b);SBLOCK::R(I)
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