MESON Chess Problem Database

Problem Display
PID: 274389 (3B4/K1R5/4Prp1/1Nn1kbn1/3pP2r/6P1/4Q3/4NR2 w - - 0 1)

Swane, Jan Arnold Willem

Probleemblad, 1953

3B4/K1R5/4Prp1/1Nn1kbn1/3pP2r/6P1/4Q3/4NR2

#2

10 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe6
      • 2.Re7#
    • 1...Rxe6
      • 2.Rxc5#
    • 1...Bxe6
      • 2.Bxf6#
    • 1...Scxe6
      • 2.Sd3#
    • 1...Sgxe6
      • 2.Sf3#
  • Tries
    • 1.Sd3+?
      • 1...Kxe6
        • 2.Re7#
      • 1...Sxd3!
    • 1.Sf3+?
      • 1...Kxe6
        • 2.Re7#
        • 2.Qc4#
      • 1...Sxf3!
    • 1.exf5+?
      • 1...Re4
        • 2.Rxc5#
      • 1...Sce4
        • 2.Rc5#
      • 1...Sge4
        • 2.Rxc5#
      • 1...Kd5!
  • Keys
    • 1.Qc4!
      • threat
        • 2.Qd5#
      • 1...Kxe4
        • 2.Qxd4#
      • 1...Rxe4
        • 2.Rxc5#
      • 1...Bxe4
        • 2.Bxf6#
      • 1...Bxe6
        • 2.Qxd4#
      • 1...Scxe4
        • 2.Sd3#
      • 1...Sgxe4
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 5
    • REMOVED MATES = 4
  • Sets
    • K(d);OGATEB,P-FLIGHT,XP(G)::R1(I)
    • R(g);SBLOCK,XP(G)::R(I),XS(c)
    • B(e);SBLOCK,XP(G)::B(J),XR(g)
    • S(c);N_GUARD,SBLOCK,XP(G)::S(A)
    • S(f);N_GUARD,SBLOCK,XP(G)::S(A)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(d);P-FLIGHT,S_CUTS(c),XP(G)::R1(I)
      • Refutation
        • S(c);XS(A)
    • Try
      • S(A);CHECK
      • Refutation
        • S(f);XS(A)
    • Try
      • P(E);CHECK,XB(e)
      • Vars
        • R(b);P_SPINR(b)::R(I),XS(c)
        • S(c);P_SPINS(c)::R(I)
        • S(f);P_SPINS(f)::R(I),XS(c)
      • Refutation
        • K(d);P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR1(C)
    • Vars
      • K(d);N_GUARD,P-FLIGHT,P_SPINP(a),XP(E)::QAR1(C),XP(a)
      • R(b);SBLOCK,XP(E)::R(I),XS(c)
      • B(e);SBLOCK,XP(E)::B(J),XR(g)
      • B(e);SBLOCK,XP(G)::QAB1(C),XP(a)
      • S(c);N_GUARD,SBLOCK,XP(E)::S(A)
      • S(f);N_GUARD,SBLOCK,XP(E)::S(A)
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