MESON Chess Problem Database

Problem Display
PID: 53414 (4R3/2b2p2/1pPkN3/R1rP3K/1PnQ4/8/8/8 w - - 0 1)

Gevers, Raymond

3rd HM., A Bola, 1948

4R3/2b2p2/1pPkN3/R1rP3K/1PnQ4/8/8/8

#2

8 + 6

785 Het Belgisch Schaakbord (L'Echiquier Belge) 1949
785 Het Belgisch Schaakbord (L'Echiquier Belge) 1956

SOLUTION

  • SOUND
  • Sets
    • 1...Rxd5+
      • 2.Qxd5#
    • 1...bxa5
      • 2.bxc5#
    • 1...b5
      • 2.bxc5#
    • 1...fxe6
      • 2.Rxe6#
  • Keys
    • 1.Qf6!
      • threat
        • 2.Sf4#
      • 1...Rxd5+
        • 2.Sg5#
      • 1...Kxd5
        • 2.Sxc7#
      • 1...Rxc6
        • 2.Sf8#
      • 1...fxe6
        • 2.Qxe6#
      • 1...Bb8
        • 2.Rd8#
      • 1...Bd8
        • 2.Rxd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 2
  • Sets
    • R(b);CHECK,OGATE,P_SPINR(b),XP(D)::QAR1(B),XR(b)
    • P(c);N_GUARD,XR(C)::P(A),XR(b)
    • P(c);N_GUARD::P(A),XR(b)
    • P(f);OGATE,XS(G)::R1(H),XP(f)
  • Actual
    • Q(B);
    • Threat
      • QAR(B)+S(G)
    • Vars
      • R(b);CHECK,XP(D)::QAR(B)+S(G)
      • K(d);P-FLIGHT,P_SPINR(b),XP(D)::S(G),XB(e)
      • R(b);N_PINP(D),XP(F)::QAR(B)+S(G)
      • P(f);OGATE,P_SPINP(f),XS(G)::QAR1(B),XP(f)
      • B(e);N_GUARD::R(H)
      • B(e);N_GUARD::R(H),XB(e)
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