MESON Chess Problem Database

Problem Display
PID: 133703 (8/1PR1pp2/4Pp2/QN2k3/3n3K/4N1P1/4B3/B3R3 w - - 0 1)

Schatz, Max

6th Comm., Die Schwalbe, 2008

8/1PR1pp2/4Pp2/QN2k3/3n3K/4N1P1/4B3/B3R3

#2

11 + 5

23 Die Schwalbe 2010

SOLUTION

  • SOUND
  • Tries
    • 1.Sc4+?
      • 1...Ke4
        • 2.Sc3#
      • 1...Kf5
        • 2.Bd3#
      • 1...Kxe6
        • 2.Sxd4#
      • 1...Kd5!
    • 1.Sg4+?
      • 1...Ke4
        • 2.Sc3#
      • 1...Kd5
        • 2.Bc4#
      • 1...Kf5
        • 2.Bd3#
      • 1...Kxe6!
    • 1.Sxd4+?
      • 1...Kd6
        • 2.Sc4#
        • 2.Sef5#
        • 2.Rc6#
        • 2.Rd7#
        • 2.Qc5#
      • 1...Ke4!
    • 1.Sd6+?
      • 1...Kxe6
        • 2.Qd5#
      • 1...Kxd6!
    • 1.Bxd4+?
      • 1...Kxe6
        • 2.Bc4#
        • 2.Qb6#
        • 2.Qa2#
        • 2.Qa6#
      • 1...Ke4!
    • 1.Bf3?
      • 1...fxe6
        • 2.Bxd4#
        • 2.Rc5#
      • 1...f5
        • 2.Sg4#
        • 2.Sd5#
      • 1...Kxe6!
    • 1.Qb4?
      • 1...Ke4
        • 2.Qxd4#
      • 1...Kxe6
        • 2.Rxe7#
        • 2.Qxe7#
      • 1...fxe6
        • 2.Qxd4#
      • 1...f5!
    • 1.Qb6?
      • 1...Ke4
        • 2.Qxd4#
      • 1...fxe6
        • 2.Qxd4#
      • 1...f5!
  • Keys
    • 1.Sf5!
      • 1...Ke4
        • 2.Sc3#
      • 1...Kd5
        • 2.Bc4#
      • 1...Kxf5
        • 2.Bd3#
      • 1...Kxe6
        • 2.Sbxd4#
      • 1...fxe6
        • 2.Sbd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(b);N_SPINS(a),P-FLIGHT::S(H)
        • K(b);N_SPINS(a),P-FLIGHT::B(C)
        • K(b);N_SPINS(a),P-FLIGHT,XP(I)::S(H),XS(a)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT
    • Try
      • S(D);CHECK
      • Vars
        • K(b);N_SPINS(a),P-FLIGHT::S(H)
        • K(b);N_SPINS(a),P-FLIGHT::B(C)
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT,XP(I)
    • Try
      • S(H);CHECK,XS(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • S(H);CHECK
      • Vars
        • K(b);N_SPINS(a),P-FLIGHT,XP(I)::QAB1(G)
      • Refutation
        • K(b);N_SPINS(a),S_FLIGHT,XS(H)
    • Try
      • B(A);CHECK,XS(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(C);
      • Refutation
        • K(b);N_SPINS(a),P-FLIGHT,XP(I)
    • Try
      • Q(G);
      • Vars
        • K(b);P-FLIGHT::QAR1(G),XS(a)
        • P(e);SBLOCK,XP(I)::QAB1(G),XS(a)
      • Refutation
        • P(c);
    • Try
      • Q(G);
      • Vars
        • K(b);N_SPINS(a),P-FLIGHT::QAR1(G),XS(a)
        • P(e);SBLOCK,XP(I)::QAB1(G),XS(a)
      • Refutation
        • P(c);
  • Actual
    • S(D);
    • Vars
      • K(b);N_SPINS(a),P-FLIGHT::S(H)
      • K(b);N_SPINS(a),P-FLIGHT::B(C)
      • K(b);N_SPINS(a),P-FLIGHT,XS(D)::B(C)
      • K(b);N_SPINS(a),P-FLIGHT,XP(I)::S(H),XS(a)
      • P(e);SBLOCK,XP(I)::QAR(G)+S(H)
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