MESON Chess Problem Database

Problem Display
PID: 115143 (3n4/4B3/4p2N/4k3/7r/3K2P1/4P3/3Q4 w - - 0 1)

Benoit, Marc

La Presse, 1943

3n4/4B3/4p2N/4k3/7r/3K2P1/4P3/3Q4

#2

6 + 4

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Tries
    • 1.Qa1+?
      • 1...Rd4+
        • 2.Qxd4#
      • 1...Kd5!
    • 1.Qc1?
      • threat
        • 2.Qg5#
        • 2.Qc5#
      • 1...Kd5
        • 2.Qc5#
      • 1...Rc4
        • 2.Qg5#
      • 1...Rf4
        • 2.Qc5#
      • 1...Rg4
        • 2.Qc5#
      • 1...Rh5
        • 2.Qc5#
      • 1...Sb7
        • 2.Qg5#
      • 1...Sf7
        • 2.Qc5#
      • 1...Rd4+!
  • Keys
    • 1.e4!
      • threat
        • 2.Qa1#
      • 1...Rxe4
        • 2.Qh5#
      • 1...Rh1
        • 2.Sg4#
      • 1...Rh2
        • 2.Sg4#
      • 1...Sc6
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • R(a);CHECK,N_GUARD,P_SPINR(a)::QAB1(A),XR(a)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • K(b);P-FLIGHT::QAR1(A)
        • R(a);::QAR2(A)
        • S(d);::QAR2(A)
      • Refutation
        • R(a);CHECK
  • Actual
    • P(B);
    • Threat
      • QAB(A)
    • Vars
      • R(a);N_GUARD,XP(B)::QAR(A)
      • R(a);N_GUARD::S(E)
      • S(d);N_GUARD::S(E)
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Developed and maintained by Brian Stephenson.
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