MESON Chess Problem Database

Problem Display
PID: 121067 (nB3b2/3p4/1n4R1/2pk1N1r/3ppP2/3Np2p/2R4K/1Q6 w - - 0 1)

Groeneveld, Cornelis

Thema Danicum, 1993

nB3b2/3p4/1n4R1/2pk1N1r/3ppP2/3Np2p/2R4K/1Q6

#2

8 + 11

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Rxd6#
    • 1...Bh6
      • 2.Se7#
      • 2.Rxc5#
      • 2.Rd6#
    • 1...Be7
      • 2.Sxe7#
    • 1...Bg7
      • 2.Se7#
      • 2.Rxc5#
      • 2.Rd6#
    • 1...Sa4
      • 2.Qb7#
    • 1...Sc4
      • 2.Qb7#
    • 1...Sc8
      • 2.Qb7#
    • 1...exd3
      • 2.Qh1#
  • Tries
    • 1.Bd6?
      • threat
        • 2.Rxc5#
      • 1...Bxd6
        • 2.Rxd6#
      • 1...exd3
        • 2.Qh1#
      • 1...Sa4
        • 2.Qb7#
      • 1...Sc4
        • 2.Qb7#
      • 1...c4
        • 2.Sb4#
        • 2.Qb5#
      • 1...Kc6!
    • 1.Qa2+?
      • 1...Sc4
        • 2.Qxc4#
        • 2.Qxa8#
      • 1...c4!
    • 1.Qb3+?
      • 1...Sc4
        • 2.Qxc4#
        • 2.Qb7#
      • 1...c4!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Rxc5#
      • 1...Kc6
        • 2.Sb4#
      • 1...Bxd6
        • 2.Rxd6#
      • 1...exd3
        • 2.Qh1#
      • 1...Sa4
        • 2.Qb7#
      • 1...Sc4
        • 2.Qb7#
      • 1...c4
        • 2.Qb5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(k);N_GUARD,P_PINP(E)::R1(G),XB(k)
    • B(k);N_GUARD::S(F),XB(k)
    • S(h);OGATE::QAB(A)
    • P(d);OGATEB,XS(D)::QAB(A)
  • Tries
    • Try
      • B(H);
      • Threat
        • R1(B),XP(e)
      • Vars
        • B(k);OGATE,P_PINP(E),XB(H)::R1(G),XB(k)
        • P(d);OGATEB,XS(D)::QAB(A)
        • S(h);OGATE::QAB(A)
      • Refutation
        • K(f);P_SPINP(e),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • Q(A);CHECK
      • Refutation
        • P(e);P_SPINP(e)
  • Actual
    • S(F);
    • Threat
      • R1(B),XP(e)
    • Vars
      • K(f);P_SPINP(e),S_FLIGHT::S(D)
      • B(k);OGATE,P_PINP(E),XS(F)::R1(G),XB(k)
      • P(d);OGATEB,XS(D)::QAB(A)
      • S(h);OGATE::QAB(A)
      • P(e);OGATEB::QAR2(A)
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