MESON Chess Problem Database

Problem Display
PID: 200276 (1N1r4/P1b1Nn1r/R7/pk1pp2b/p7/B4B2/QPPKn3/8 w - - 0 1)

Simonet, Andre

Problemas, 1990

1N1r4/P1b1Nn1r/R7/pk1pp2b/p7/B4B2/QPPKn3/8

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rc8
      • 2.Qxd5#
    • 1...Re8
      • 2.Qxd5#
    • 1...Rf8
      • 2.Qxd5#
    • 1...Rg8
      • 2.Qxd5#
    • 1...Rh8
      • 2.Qxd5#
    • 1...Sd6
      • 2.Qxd5#
    • 1...d4
      • 2.Bc6#
  • Tries
    • 1.a8S?
      • threat
        • 2.Sxc7#
      • 1...Bxb8
        • 2.Rb6#
      • 1...Rc8
        • 2.Qxd5#
      • 1...Bb6
        • 2.Rxb6#
      • 1...Bd6
        • 2.Rb6#
      • 1...Rd7!
  • Keys
    • 1.Bxd5!
      • threat
        • 2.Qc4#
        • 2.c4#
      • 1...Rxd5+
        • 2.Qxd5#
      • 1...Rxb8
        • 2.Bc4#
        • 2.Qc4#
      • 1...Bxb8
        • 2.Qc4#
      • 1...Sc3
        • 2.Qc4#
      • 1...Sd6
        • 2.Bc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 6
  • Sets
    • R(k);N_GUARD::QAR2(A),XP(e)
    • S(i);S_CUTR(k)::QAR2(A),XP(e)
    • P(e);OGATE::B(F)
  • Tries
    • Try
      • P(H);
      • Threat
        • S(H),XB(h)
      • Vars
        • B(h);N_GUARD,XS(J)::R1(G)
        • R(k);N_GUARD::QAR2(A),XP(e)
        • B(h);N_GUARD::R1(G),XB(h)
        • B(h);N_GUARD::R1(G)
      • Refutation
        • R(k);
  • Actual
    • B(F);P_SPINB(F),XP(e)
    • Threat
      • DUALS(2)
    • Vars
      • R(k);CHECK,OGATE,XB(F)::QAR2(A),XR(k)
      • B(h);XS(J)::QAB1(A)
      • S(a);::QAB1(A)
      • S(i);N_PINB(F)::B(F)
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