MESON Chess Problem Database

Problem Display
PID: 37530 (8/1K3p1q/4kBr1/1N1Nn2r/3RR3/1B6/8/8 w - - 0 1)

Schneider, Michael

9th Place, Match: Saxony - Switzerland, 1991-1992

8/1K3p1q/4kBr1/1N1Nn2r/3RR3/1B6/8/8

#2

7 + 6

3454 kunstschach (1987-1996) (Hoffmann) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Kf5
      • 2.Rxe5#
    • 1...Kd7
      • 2.Sdc7#
  • Tries
    • 1.Sbc7+?
      • 1...Kf5
        • 2.Rf4#
        • 2.Rxe5#
      • 1...Kd7
        • 2.Sc3#
        • 2.Se3#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sb6#
        • 2.Se7#
      • 1...Kd6!
    • 1.Sdc3+?
      • 1...Kf5
        • 2.Rf4#
      • 1...Kxf6!
    • 1.Sb4+?
      • 1...Kf5
        • 2.Rf4#
      • 1...Kxf6!
    • 1.Sb6+?
      • 1...Kf5
        • 2.Rf4#
      • 1...Kxf6!
    • 1.Sdc7+?
      • 1...Kf5
        • 2.Rf4#
      • 1...Kxf6!
    • 1.Rxe5+?
      • 1...Kd7
        • 2.Sdc3#
        • 2.Se3#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sb6#
        • 2.Sdc7#
      • 1...Rxe5!
  • Keys
    • 1.Bd8!
      • threat
        • 2.Se3#
      • 1...f5+
        • 2.Sdc7#
      • 1...f6+
        • 2.Se7#
      • 1...Kf5
        • 2.Se3#
      • 1...Kd7
        • 2.Sf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);N_SPINS(a),S_FLIGHT::R1(C),XS(a)
    • K(c);N_SPINS(a),S_FLIGHT::R(B)+S(E)
  • Tries
    • Try
      • S(D);CHECK
      • Refutation
        • K(c);N_SPINS(a),P-FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(c);N_SPINS(a),S_FLIGHT::R1(C)
      • Refutation
        • K(c);N_SPINS(a),P-FLIGHT,XB(F)
    • Try
      • S(E);CHECK
      • Vars
        • K(c);N_SPINS(a),S_FLIGHT::R1(C)
      • Refutation
        • K(c);N_SPINS(a),P-FLIGHT,XB(F)
    • Try
      • S(E);CHECK
      • Vars
        • K(c);N_SPINS(a),S_FLIGHT::R1(C)
      • Refutation
        • K(c);N_SPINS(a),P-FLIGHT,XB(F)
    • Try
      • S(E);CHECK
      • Vars
        • K(c);N_SPINS(a),S_FLIGHT::R1(C)
      • Refutation
        • K(c);N_SPINS(a),P-FLIGHT,XB(F)
    • Try
      • R(C);CHECK,XS(a)
      • Refutation
        • R(b);XR(C)
  • Actual
    • B(F);
    • Threat
      • B(A)+S(E)
    • Vars
      • P(e);CHECK,SBLOCK::B(A)+S(E),DCHECK
      • P(e);CHECK,SBLOCK::B(A)+S(E)
      • K(c);N_SPINS(a),S_FLIGHT::S(E)
      • K(c);N_SPINS(a),S_FLIGHT::R(B)+S(E),DCHECK
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