MESON Chess Problem Database

Problem Display
PID: 73524 (B4N1Q/8/2r2r2/2p1kNRp/2K4p/4p2P/pR4P1/B7 w - - 0 1)

Buchwald, Julius

Magasinet, 1939

B4N1Q/8/2r2r2/2p1kNRp/2K4p/4p2P/pR4P1/B7

#2

10 + 8

5759 Selected Compositions of Julius Buchwald 2005

SOLUTION

  • SOUND
  • Sets
    • 1...Ra6
      • 2.Rf2#
    • 1...Re6
      • 2.Sg6#
      • 2.Rf2#
    • 1...Rc7
      • 2.Rf2#
    • 1...Rc8
      • 2.Rf2#
  • Tries
    • 1.Sd6+?
      • 1...Kf4
        • 2.Qxf6#
      • 1...Kxd6!
    • 1.Sg6+?
      • 1...Ke6
        • 2.Qe8#
      • 1...Ke4!
    • 1.Qxf6+?
      • 1...Ke4
        • 2.Sd6#
      • 1...Kf4
        • 2.Sd6#
      • 1...Rxf6
        • 2.Rf2#
      • 1...Kxf6!
  • Keys
    • 1.Se6!
      • 1...Ke4
        • 2.Sd6#
      • 1...Kxe6
        • 2.Qe8#
      • 1...Rxe6
        • 2.Rf2#
      • 1...Ra6
        • 2.Rb6#
      • 1...Rb6
        • 2.Rxb6#
      • 1...Rd6
        • 2.Sfd4#
      • 1...Rc7
        • 2.Rb6#
      • 1...Rc8
        • 2.Rb6#
      • 1...e2
        • 2.Rxe2#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 3
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • R(g);::B(A)+R(B)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • K(e);N_SPINR(h),S_FLIGHT::QAR2(J),XR(h)
      • Refutation
        • K(e);N_SPINR(h),S_FLIGHT,XS(F)
    • Try
      • S(I);CHECK
      • Vars
        • K(e);N_SPINR(h),P-FLIGHT::QAR2(J)
      • Refutation
        • K(e);N_SPINR(h),P-FLIGHT,P_SPINR(g)
    • Try
      • Q(J);CHECK,XR(h)
      • Vars
        • K(e);P-FLIGHT,P_SPINR(g)::S(F)
        • K(e);S_FLIGHT::QAR(J)+S(F)
        • R(g);SBLOCK,XQ(J)::B(A)+R(B)
      • Refutation
        • K(e);S_FLIGHT,XQ(J)
  • Actual
    • S(I);
    • Vars
      • K(e);N_SPINR(h),P-FLIGHT,P_SPINR(g)::S(F)
      • K(e);N_SPINR(h),OGATEB,P-FLIGHT,XS(I)::QAR2(J)
      • R(g);SBLOCK,XS(I)::B(A)+R(B)
      • R(g);::B(A)+R(B)
      • R(g);::B(A)+R(B),XR(g)
      • R(g);SBLOCK::R(G)+S(F)
      • P(b);::B(A)+R(B),DCHECK,XP(b)
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