MESON Chess Problem Database

Problem Display
PID: 66819 (3K1R2/BB1N4/2P1p3/1p2Nn2/4kP2/6P1/Q1n1P3/b1rr4 w - - 0 1)

Neumann, Itzhak

1st HM., Western Morning News, 1933

3K1R2/BB1N4/2P1p3/1p2Nn2/4kP2/6P1/Q1n1P3/b1rr4

#2

11 + 8

5828 My Selected Chess Problems (Neumann) 1968

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Sf6#
      • 2.c7#
    • 1...Rf1
      • 2.Sf6#
      • 2.c7#
    • 1...Rg1
      • 2.Sf6#
      • 2.c7#
    • 1...Rh1
      • 2.Sf6#
      • 2.c7#
    • 1...Rd3
      • 2.exd3#
    • 1...Rxd7+
      • 2.cxd7#
  • Keys
    • 1.Sg4!
      • threat
        • 2.Sf2#
      • 1...Rxd7+
        • 2.cxd7#
      • 1...Bf6+
        • 2.Sxf6#
      • 1...Rf1
        • 2.c7#
      • 1...Rd4
        • 2.Qxe6#
      • 1...Bd4
        • 2.c7#
      • 1...Scd4
        • 2.Sdf6#
      • 1...Sfd4
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 1
  • Sets
    • R(c);OGATE::P(B),XR(c)
    • R(c);CHECK,OGATE,XS(I)::B(H)+P(F),XR(c)
  • Actual
    • S(E);
    • Threat
      • S(E)
    • Vars
      • R(c);CHECK,OGATE,XS(I)::B(H)+P(F),XR(c)
      • B(a);CHECK,N_GUARD::S(E),XB(a)
      • R(c);N_GUARD,N_PINS(I)::B(H)+P(F)
      • R(c);S_CUTB(a)::QAR2(A),XP(h)
      • B(a);N_PINS(I),S_CUTR(c)::B(H)+P(F)
      • S(d);N_PINS(I)::S(I)
      • S(g);N_PINS(I),SBLOCK::S(I)
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