MESON Chess Problem Database

Problem Display
PID: 44319 (3r4/8/4p3/k2rR3/p6Q/N7/3R4/3K1BB1 w - - 0 1)

Servais, Albert

South African Chess Magazine, 1946

3r4/8/4p3/k2rR3/p6Q/N7/3R4/3K1BB1

#2

7 + 5

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1948

SOLUTION

  • SOUND
  • Tries
    • 1.Rdxd5+?
      • 1...exd5
        • 2.Qe1#
      • 1...Rxd5+!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Rdxd5#
      • 1...Kb4
        • 2.Rd3#
      • 1...Rxe5
        • 2.Rd5#
      • 1...Rb5
        • 2.Rd6#
      • 1...Rc5
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK,XR(c)
      • Vars
        • P(d);P_SPINP(d),XR(D)::QAB(F)
      • Refutation
        • R(e);CHECK,P_SPINR(e),XR(D)
  • Actual
    • Q(F);
    • Threat
      • QAB(F)+R(D),DCHECK,XR(c)
    • Vars
      • K(b);N_SPINR(c),S_FLIGHT::QAB(F)+R(D)
      • R(c);N_SPINR(c),XR(G)::QAB(F)+R(D),DCHECK
      • R(c);::QAB(F)+R(D)
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