MESON Chess Problem Database

Problem Display
PID: 53957 (3Q1R2/2N1rb2/3p2pB/2bN1kn1/R2n1Ppq/3PrB1P/K3p3/8 w - - 0 1)

Neumann, Itzhak

Sp. Prize, Western Morning News, 1934

(First published on Sat Oct 27 1934)

3Q1R2/2N1rb2/3p2pB/2bN1kn1/R2n1Ppq/3PrB1P/K3p3/8

#2

11 + 12

371 The Chess Review 1935
5828 My Selected Chess Problems (Neumann) 1968
14868 Pirnie Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Qe1
      • 2.Bxg4#
      • 2.hxg4#
    • 1...Qf2
      • 2.Bxg4#
      • 2.hxg4#
    • 1...Qxh6
      • 2.Bxg4#
      • 2.hxg4#
    • 1...Re4
      • 2.Qf6#
    • 1...Re5
      • 2.Qf6#
    • 1...Rxc7
      • 2.Qf6#
    • 1...Rd7
      • 2.Qf6#
    • 1...Re8
      • 2.Qf6#
  • Keys
    • 1.Se8!
      • threat
        • 2.Sg7#
      • 1...Ke6
        • 2.Sg7#
      • 1...Qxh6
        • 2.Bxg4#
      • 1...Rxe8
        • 2.Qf6#
      • 1...Sde6
        • 2.Sxe7#
      • 1...Sge6
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • R(k);OGATE::QAR1(J)
    • R(k);OGATE,XS(I)::QAR1(J)
  • Actual
    • S(I);
    • Threat
      • S(I)
    • Vars
      • K(g);N_PINS(G),N_SPINB(l),S_FLIGHT::S(I)
      • Q(e);N_GUARD,XB(H)::B(C),XP(d)
      • R(k);OGATE,XS(I)::QAR1(J)
      • S(c);N_PINS(G),SBLOCK::S(G),XR(k)
      • S(h);N_PINS(G),SBLOCK::S(G),XR(b)
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