MESON Chess Problem Database

Problem Display
PID: 199340 (3n1NQB/3ppP1B/4pr2/1KPk1bnR/2R2P2/8/8/8 w - - 0 1)

Groth, Reinhard

Freie Presse, 2001

(First published on Fri Jun 29 2001)

3n1NQB/3ppP1B/4pr2/1KPk1bnR/2R2P2/8/8/8

#2

10 + 8

16210 Problemschach-Jahrbuch (2001) 2002

SOLUTION

  • SOUND
  • Sets
    • 1...Rg6
      • 2.Rd4#
    • 1...Rh6
      • 2.Rd4#
    • 1...Rxf7
      • 2.Rd4#
    • 1...Bh3
      • 2.Be4#
    • 1...Be4
      • 2.Bxe4#
    • 1...Bg4
      • 2.Be4#
    • 1...Sh3
      • 2.Qg2#
    • 1...Sgxf7
      • 2.Qg2#
    • 1...Sxh7
      • 2.Qg2#
  • Tries
    • 1.Qxg5?
      • threat
        • 2.Qg2#
      • 1...Rg6
        • 2.Rd4#
      • 1...e5!
  • Keys
    • 1.Sxe6!
      • threat
        • 2.Sc7#
      • 1...Kxe6
        • 2.f8S#
      • 1...Rxe6
        • 2.Rd4#
      • 1...Bxe6
        • 2.Be4#
      • 1...Sgxe6
        • 2.Qg2#
      • 1...Sdxe6
        • 2.Qa8#
      • 1...dxe6
        • 2.Qxd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 9
  • Sets
    • R(e);::R1(A)
    • R(e);XP(F)::R1(A)
    • B(b);OGATE,P_SPINS(c)::B(G)
    • B(b);OGATE,P_SPINS(c)::B(G),XB(b)
    • S(c);OGATE,P_SPINB(b)::QAB(I)
    • S(c);OGATE,P_SPINB(b),XP(F)::QAB(I)
    • S(c);OGATE,P_SPINB(b),XB(G)::QAB(I)
  • Tries
    • Try
      • Q(I);P_PINB(b),XS(c)
      • Threat
        • QAB(I)
      • Vars
        • R(e);::R1(A)
      • Refutation
        • P(d);N_SPINB(b)
  • Actual
    • S(H);XP(d)
    • Threat
      • S(H)
    • Vars
      • K(a);S_FLIGHT,XS(H)::P=S
      • R(e);SBLOCK,XS(H)::R1(A)
      • B(b);OGATE,P_SPINS(c),SBLOCK,XS(H)::B(G)
      • S(c);OGATE,P_SPINB(b),SBLOCK,XS(H)::QAB(I)
      • S(h);OGATE,SBLOCK,XS(H)::QAB(I)
      • P(f);OGATEB,SBLOCK,XS(H)::QAR(I),XS(h)
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