MESON Chess Problem Database

Problem Display
PID: 39392 (3N1R2/1Nn5/1R5K/2pPk1p1/1Q2n2p/2b2B2/r7/1b1rq1B1 w - - 0 1)

Neumann, Itzhak

3rd Prize=, BCF 022. Ty., 1936-1937

3N1R2/1Nn5/1R5K/2pPk1p1/1Q2n2p/2b2B2/r7/1b1rq1B1

#2

9 + 11

5828 My Selected Chess Problems (Neumann) 1968

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Qxc5#
    • 1...Sd2
      • 2.Sc6#
      • 2.Qxc3#
    • 1...Sf2
      • 2.Sc6#
      • 2.Bh2#
    • 1...Sg3
      • 2.Sc6#
    • 1...Sd6
      • 2.Sc6#
    • 1...Sxd5
      • 2.Re6#
  • Tries
    • 1.Re6+?
      • 1...Kxd5
        • 2.Qxc5#
      • 1...Sxe6!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Rf5#
      • 1...Kxd5
        • 2.Qxc5#
      • 1...Sxd6
        • 2.Sc6#
      • 1...Sd2
        • 2.Qxc3#
      • 1...Sf2
        • 2.Bh2#
      • 1...Sg3
        • 2.Sc4#
      • 1...Sf6
        • 2.S8f7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • K(i);OGATEB,P-FLIGHT,P_SPINS(f),XP(D)::QAR1(C),XP(h)
    • S(f);::S(H)
    • S(k);N_GUARD,SBLOCK,XP(D)::R1(E)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • K(i);P-FLIGHT,P_SPINS(f),XP(D)::QAR1(C),XP(h)
      • Refutation
        • S(k);XR(E)
  • Actual
    • S(G);
    • Threat
      • R1(I)
    • Vars
      • K(i);OGATEB,P-FLIGHT,P_SPINS(f),XP(D)::QAR1(C),XP(h)
      • S(f);SBLOCK,XS(G)::S(H)
      • S(f);N_GUARD,S_CUTQ(c),S_CUTR(b)::QAB(C),XB(e)
      • S(f);N_GUARD,S_CUTQ(c),S_CUTR(d)::B(A)
      • S(f);::S(G)
      • S(f);SBLOCK::S(H)
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Developed and maintained by Brian Stephenson.
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