MESON Chess Problem Database

Problem Display
PID: 64809 (1K6/1QNppB2/b1P1P2R/1pk1BpN1/1p1b1R2/2pPp3/2P1P3/8 w - - 0 1)

Groeneveld, Cornelis

4th Prize, Probleemblad, 1982

1K6/1QNppB2/b1P1P2R/1pk1BpN1/1p1b1R2/2pPp3/2P1P3/8

#2

13 + 10

3752 FIDE Album (1980-1982) 1988
102 Probleemblad 2006

SOLUTION

  • SOUND
  • Sets
    • 1...dxc6
      • 2.Qa7#
    • 1...dxe6
      • 2.Sgxe6#
    • 1...d5
      • 2.Sxa6#
    • 1...d6
      • 2.Bxd4#
  • Tries
    • 1.Rxd4?
      • threat
        • 2.Sxa6#
        • 2.Rd5#
      • 1...dxc6
        • 2.Sxa6#
        • 2.Qa7#
      • 1...dxe6
        • 2.Sgxe6#
        • 2.Sxa6#
        • 2.Scxe6#
      • 1...b3
        • 2.Sxa6#
      • 1...d5
        • 2.Sxa6#
        • 2.Rxd5#
      • 1...Bxb7!
    • 1.Qxa6?
      • threat
        • 2.Qxb5#
      • 1...dxc6
        • 2.Qa7#
      • 1...Bxe5!
  • Keys
    • 1.exd7!
      • threat
        • 2.Sge6#
        • 2.Sxa6#
        • 2.Bxd4#
        • 2.Qa7#
      • 1...Bxe5
        • 2.Qa7#
      • 1...Bxb7
        • 2.Bxd4#
      • 1...b3
        • 2.Sxa6#
      • 1...e6
        • 2.Sgxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 4
  • Sets
    • P(i);SBLOCK,XP(G)::QAB(J)
    • P(i);XP(H)::S(F),XP(i)
    • P(i);SBLOCK::S(K),XB(h)
    • P(i);SBLOCK::B(E),XB(d)
  • Tries
    • Try
      • R(D);XB(d)
      • Threat
        • DUALS(2)
      • Vars
        • P(c);::S(K),XB(h)
      • Refutation
        • B(h);XQ(J)
    • Try
      • Q(J);XB(h)
      • Threat
        • QAR1(J),XP(e)
      • Vars
        • P(i);SBLOCK,XP(G)::QAB(J)
      • Refutation
        • B(d);P_PINS(K),XB(E)
  • Actual
    • P(H);XP(i)
    • Threat
      • DUALS(4)
    • Vars
      • B(d);P_PINS(K),XB(E)::QAB(J)
      • B(h);XQ(J)::B(E),XB(d)
      • P(c);::S(K),XB(h)
      • P(j);::S(F),XP(j)
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