MESON Chess Problem Database

Problem Display
PID: 180864 (b7/2Kp4/3Pr3/1kp1NN2/1p2B3/Rp3Q2/3B4/4n3 w - - 0 1)

Bouttier, Pierre

Bulletin Ouvrier des Echecs, 1952

b7/2Kp4/3Pr3/1kp1NN2/1p2B3/Rp3Q2/3B4/4n3

#2

8 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd6
      • 2.Sxd6#
  • Tries
    • 1.Qe2+?
      • 1...c4
        • 2.Qxc4#
      • 1...Sd3!
    • 1.Qf1+?
      • 1...c4
        • 2.Qxc4#
      • 1...Sd3!
    • 1.Qxb3?
      • threat
        • 2.Qa4#
        • 2.Qc4#
      • 1...c4
        • 2.Qxc4#
        • 2.Qxb4#
      • 1...Bd5
        • 2.Qa4#
      • 1...Rxe5!
    • 1.Qd3+?
      • 1...c4
        • 2.Qxc4#
      • 1...Sxd3!
  • Keys
    • 1.Bb7!
      • threat
        • 2.Ba6#
      • 1...Rxd6
        • 2.Sxd6#
      • 1...Bxb7
        • 2.Qxb7#
      • 1...bxa3
        • 2.Qxb3#
      • 1...c4
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(f);XP(G)::S(F),XR(f)
  • Tries
    • Try
      • Q(C);CHECK
      • Vars
        • P(e);P_SPINP(e)::QAB1(C),XP(e)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • Q(C);CHECK
      • Vars
        • P(e);P_SPINP(e)::QAB1(C),XP(e)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • Q(C);P_PINP(c),XP(b)
      • Threat
        • DUALS(2)
      • Vars
        • B(h);::QAB1(C)
      • Refutation
        • R(f);XS(E)
    • Try
      • Q(C);CHECK
      • Vars
        • P(e);P_SPINP(e)::QAB1(C),XP(e)
      • Refutation
        • S(a);XQ(C)
  • Actual
    • B(D);
    • Threat
      • B(D)
    • Vars
      • R(f);XP(G)::S(F),XR(f)
      • B(h);OGATE,XB(D)::QAR2(C),XB(h)
      • P(c);OGATEB,XR(B)::QAR2(C),XP(b)
      • P(e);OGATEB::QAR2(C)
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