MESON Chess Problem Database

Problem Display
PID: 90129 (1b4B1/1KnP1r2/2R2N1Q/4k3/1p1rb1P1/1N1P3n/7q/4R3 w - - 0 1)

von Szugy, J

Die Schwalbe, 1960

1b4B1/1KnP1r2/2R2N1Q/4k3/1p1rb1P1/1N1P3n/7q/4R3

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd3
      • 2.Rxe4#
    • 1...Rd5
      • 2.Rxe4#
    • 1...Rd6
      • 2.Rxe4#
    • 1...Rdxd7
      • 2.Rxe4#
    • 1...Rxf6
      • 2.Qxf6#
    • 1...Sg1
      • 2.Qg5#
      • 2.Qxh2#
    • 1...Sf2
      • 2.Qg5#
      • 2.Qxh2#
    • 1...Sf4
      • 2.Qg5#
    • 1...Sg5
      • 2.Qxg5#
      • 2.Qxh2#
  • Tries
    • 1.Qh5+?
      • 1...Sg5
        • 2.Qxh2#
        • 2.Qxg5#
      • 1...Kf4!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Qd6#
      • 1...Kxd5
        • 2.Rc5#
      • 1...Rxd5
        • 2.Rxe4#
      • 1...Rxd7
        • 2.Qf6#
      • 1...Sxd5
        • 2.Re6#
      • 1...Rf6
        • 2.Qxf6#
      • 1...Sb5
        • 2.Qe6#
      • 1...Sa6
        • 2.Qe6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Sa8
        • 2.Qe6#
      • 1...Se8
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 4
  • Sets
    • R(d);N_GUARD,XP(C)::R1(A),XB(e)
    • R(d);N_GUARD,N_PINR(E)::R1(A),XB(e)
    • R(d);N_GUARD::R1(A),XB(e)
    • R(d);N_GUARD,XP(I)::R1(A),XB(e)
    • R(h);OGATE,XS(F)::QAB1(G),XR(h)
    • S(b);N_GUARD::QAR2(G)
  • Tries
    • Try
      • Q(G);CHECK
      • Refutation
        • K(f);N_SPINB(e),S_FLIGHT
  • Actual
    • S(F);N_SPINR(E)
    • Threat
      • QAB1(G)
    • Vars
      • K(f);N_SPINB(e),OGATEB,P-FLIGHT,P_SPINR(h),XS(F)::R1(E)
      • R(d);N_GUARD,SBLOCK,XS(F)::R1(A),XB(e)
      • R(h);N_GUARD,XP(I)::QAB1(G)
      • S(g);N_GUARD,P_PINP(I),SBLOCK,XS(F)::R1(E)
      • R(h);N_GUARD::QAB1(G),XR(h)
      • S(g);N_GUARD,P_PINP(I)::QAR1(G)
      • S(g);N_GUARD,P_PINP(I)::QAR1(G),XS(g)
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