MESON Chess Problem Database

Problem Display
PID: 52892 (1Q6/3Kp3/B3p2B/2p1R3/3k1r2/p3Nr1R/N4p2/n7 w - - 0 1)

Servais, Albert

1st Prize, Source?, 1942

1Q6/3Kp3/B3p2B/2p1R3/3k1r2/p3Nr1R/N4p2/n7

#2

8 + 9

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1949

SOLUTION

  • SOUND
  • Sets
    • 1...Sc2
      • 2.Sxc2#
    • 1...Sb3
      • 2.Sc2#
  • Tries
    • 1.Rd5+?
      • 1...Kxe3
        • 2.Qxf4#
        • 2.Qe5#
      • 1...Ke4
        • 2.Qe5#
      • 1...exd5!
    • 1.Qc7?
      • threat
        • 2.Qxc5#
      • 1...Sb3
        • 2.Sc2#
      • 1...c4!
  • Keys
    • 1.Rxc5!
      • threat
        • 2.Qe5#
      • 1...Kxe3
        • 2.Qxf4#
      • 1...Ke4
        • 2.Qe5#
      • 1...Kxc5
        • 2.Qa7#
      • 1...Rxe3
        • 2.Qb4#
      • 1...Re4
        • 2.Qb4#
      • 1...Rf5
        • 2.Qb4#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 2
  • Sets
    • S(a);N_GUARD::S(B),XS(a)
    • S(a);N_GUARD::S(B)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(e);P-FLIGHT::QAR1(H)
      • Refutation
        • P(h);XR(D)
    • Try
      • Q(H);
      • Threat
        • QAB1(H),XP(g)
      • Vars
        • S(a);N_GUARD::S(B)
      • Refutation
        • P(g);
  • Actual
    • R(D);XP(g)
    • Threat
      • QAB1(H)
    • Vars
      • K(e);P_SPINR(d),S_FLIGHT,XS(B)::QAB1(H),XR(f)
      • K(e);P-FLIGHT::QAR1(H)
      • K(e);OGATEB,S_FLIGHT,XR(D)::QAB(H)
      • R(d);XS(B)::QAR2(H)
      • R(f);SBLOCK::QAR2(H)
      • R(f);::QAR2(H)
      • P(h);::QAB1(H),XP(h)
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Developed and maintained by Brian Stephenson.
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