MESON Chess Problem Database

Problem Display
PID: 67116 (7Q/4p3/1P2Np2/B1p2BN1/Pp2RP2/1pk5/1b1p4/1Kn5 w - - 0 1)

Papack, Daniel

1st Prize, Freie Presse, 1997

7Q/4p3/1P2Np2/B1p2BN1/Pp2RP2/1pk5/1b1p4/1Kn5

#2

10 + 9

5417 FIDE Album (1995-1997) 2004

SOLUTION

  • SOUND
  • Sets
    • 1...Kd3
      • 2.Qh3#
    • 1...Sa2
      • 2.Qh3#
  • Tries
    • 1.Bxb4+?
      • 1...Kd3
        • 2.Sxc5#
        • 2.Qh3#
      • 1...cxb4!
    • 1.Rxb4?
      • threat
        • 2.Rd4#
      • 1...cxb4
        • 2.Qc8#
      • 1...Sd3
        • 2.Se4#
      • 1...Sa2
        • 2.Qh3#
      • 1...c4
        • 2.Rb5#
      • 1...Ba3!
    • 1.Qxf6+?
      • 1...Kd3
        • 2.Sxc5#
      • 1...exf6!
  • Keys
    • 1.Rd4!
      • threat
        • 2.Se4#
      • 1...cxd4
        • 2.Qc8#
      • 1...fxg5
        • 2.Rxb4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • K(e);N_SPINP(f),P-FLIGHT::QAR(J)
    • S(a);N_GUARD::QAR(J)
  • Tries
    • Try
      • B(E);CHECK,P_PINP(h),XP(f)
      • Refutation
        • P(g);XB(E)
    • Try
      • R(C);P_PINP(h),XP(f)
      • Threat
        • B(E)+R(C)
      • Vars
        • P(g);N_SPINP(h),OGATEB,P_SPINP(g),XR(C)::QAR(J)
        • S(a);SBLOCK::S(G)
        • S(a);N_GUARD::QAR(J)
        • P(g);SBLOCK::B(E)+R(C)
      • Refutation
        • B(b);
    • Try
      • Q(J);CHECK,XP(h)
      • Vars
        • K(e);N_SPINP(f),P-FLIGHT::S(I),XP(g)
      • Refutation
        • P(i);XQ(J)
  • Actual
    • R(C);
    • Threat
      • S(G)
    • Vars
      • P(g);OGATEB,XR(C)::QAR(J)
      • P(h);OGATEB,XS(G)::QAB(J)+R(C),XP(f)
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