MESON Chess Problem Database

Problem Display
PID: 222845 (1B6/3NQ3/2rqn3/3R1P2/Rnb1kN2/2Pr4/4K2p/1B6 w - - 0 1)

Siebenschein, Eugen

Siebenschein, Raphael

Wiener Hausfrauen-Zeitung, 1884

1B6/3NQ3/2rqn3/3R1P2/Rnb1kN2/2Pr4/4K2p/1B6

#2

10 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxf4
      • 2.Qh4#
    • 1...Qxf4
      • 2.Sf6#
    • 1...Qc5
      • 2.Sf6#
  • Tries
    • 1.Bxd6?
      • threat
        • 2.Sf6#
        • 2.Qxe6#
      • 1...Bxd5
        • 2.Bxd3#
      • 1...Sxd5
        • 2.Bxd3#
        • 2.Qxe6#
      • 1...Rxd6!
    • 1.Re5+?
      • 1...Kxf4
        • 2.Qh4#
      • 1...Qxe5!
  • Keys
    • 1.Sh5!
      • threat
        • 2.Sdf6#
      • 1...Kxd5
        • 2.Shf6#
      • 1...Qxe7
        • 2.Re5#
      • 1...Qxd5
        • 2.Sg3#
      • 1...Qxd7
        • 2.Sf6#
        • 2.Re5#
      • 1...Bxd5
        • 2.Bxd3#
      • 1...Sxd5
        • 2.Bxd3#
      • 1...Qe5
        • 2.Rxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 3
  • Sets
    • K(e);N_SPINR(b),N_SPINS(h),OGATEB,P-FLIGHT,P_SPINQ(g),XS(E)::QAR2(I)
    • Q(g);XS(E)::S(H)
    • Q(g);::S(H)
  • Tries
    • Try
      • B(J);XQ(g)
      • Threat
        • DUALS(2)
      • Vars
        • B(d);N_GUARD,N_SPINS(h),P_SPINS(c),XR(F)::B(A),XR(b)
      • Refutation
        • R(f);XB(J)
    • Try
      • R(F);CHECK,N_PINS(h)
      • Vars
        • K(e);N_SPINR(b),P-FLIGHT,XS(E)::QAR2(I)
      • Refutation
        • Q(g);XR(F)
  • Actual
    • S(E);
    • Threat
      • S(H)
    • Vars
      • K(e);N_SPINR(b),N_SPINS(h),S_FLIGHT,XR(F)::S(E)
      • Q(g);N_GUARD,N_SPINS(h),XQ(I)::R1(F)
      • Q(g);N_GUARD,SBLOCK,XR(F)::S(E)
      • B(d);N_GUARD,N_SPINS(h),P_SPINS(c),SBLOCK,XR(F)::B(A),XR(b)
      • S(c);N_GUARD,P_SPINB(d),SBLOCK,XR(F)::B(A),XR(b)
      • Q(g);N_GUARD,N_SPINS(h)::R1(F),XQ(g)
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Developed and maintained by Brian Stephenson.
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