MESON Chess Problem Database

Problem Display
PID: 56751 (QbrR4/2p5/8/5p2/4Nk2/pR3N1p/P2P1P1P/1n2K2n w - - 0 1)

Cavrel, Edouard

L'Eco degli Scacchi, 1918

QbrR4/2p5/8/5p2/4Nk2/pR3N1p/P2P1P1P/1n2K2n

#2

10 + 9

14947 Normandie Sports 1920
797 Bulletin de la FFE 1924
14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Tries
    • 1.Rd4?
      • threat
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Seg5#
        • 2.Sd6#
        • 2.Sf6#
      • 1...Kg4
        • 2.Sf6#
      • 1...Sxd2
        • 2.Sexd2#
      • 1...Sxf2
        • 2.Sxf2#
      • 1...fxe4
        • 2.Qxe4#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Rd8
        • 2.Sd6#
      • 1...Ba7
        • 2.Sc5#
      • 1...Sg3
        • 2.Sxg3#
      • 1...c5
        • 2.Sxc5#
      • 1...c6
        • 2.Sg3#
        • 2.Sc5#
        • 2.Seg5#
        • 2.Sd6#
        • 2.Sf6#
      • 1...Re8!
  • Keys
    • 1.Rb4!
      • threat
        • 2.Sc3#
        • 2.Sg3#
        • 2.Sc5#
        • 2.Seg5#
        • 2.Sd6#
        • 2.Sf6#
      • 1...Kxf3
        • 2.Sg5#
      • 1...Kg4
        • 2.Sf6#
      • 1...Rxd8
        • 2.Sd6#
      • 1...Sxd2
        • 2.Sexd2#
      • 1...Sxf2
        • 2.Sxf2#
      • 1...fxe4
        • 2.Qxe4#
      • 1...Ba7
        • 2.Sc5#
      • 1...Sc3
        • 2.Sxc3#
      • 1...Sg3
        • 2.Sxg3#
      • 1...c5
        • 2.Sxc5#
      • 1...c6
        • 2.Seg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(J);
      • Threat
        • DUALS(6)
      • Vars
        • K(e);P-FLIGHT::R(J)+S(H),DCHECK
        • S(a);XP(C)::R(J)+S(H),XS(a)
        • S(b);XP(D)::R(J)+S(H),XS(b)
        • P(f);OGATE,P_SPINP(f),XS(H)::QAR1(I),XP(f)
        • S(a);::R(J)+S(H),XS(a)
        • R(i);::R(J)+S(H)
        • B(h);::R(J)+S(H)
        • S(b);::R(J)+S(H),XS(b)
        • P(g);::R(J)+S(H),XP(g)
      • Refutation
        • R(i);P_PINS(H)
  • Actual
    • R(F);
    • Threat
      • DUALS(6)
    • Vars
      • K(e);P-FLIGHT,XS(G)::QAB(I)+S(H),DCHECK
      • K(e);P-FLIGHT::R(F)+S(H),DCHECK
      • R(i);XR(J)::R(F)+S(H)
      • S(a);XP(C)::R(F)+S(H),XS(a)
      • S(b);XP(D)::R(F)+S(H),XS(b)
      • P(f);OGATE,P_SPINP(f),XS(H)::QAR1(I),XP(f)
      • B(h);::R(F)+S(H)
      • S(a);::R(F)+S(H),XS(a)
      • S(b);::R(F)+S(H),XS(b)
      • P(g);::R(F)+S(H),XP(g)
      • P(g);::R(F)+S(H)
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