MESON Chess Problem Database

Problem Display
PID: 56759 (2Rr1NBK/3Pk1Pp/4r3/pNP2P2/3Qn2b/B7/4R3/4q2b w - - 0 1)

Pape, Edouard

3rd HM., Good Companions (May), 1924

2Rr1NBK/3Pk1Pp/4r3/pNP2P2/3Qn2b/B7/4R3/4q2b

#2

12 + 9

797 Bulletin de la FFE 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Re5
      • 2.Qxe5#
    • 1...Rd6
      • 2.Qxd6#
      • 2.cxd6#
    • 1...Re8
      • 2.Rxe8#
      • 2.dxe8Q#
      • 2.dxe8R#
    • 1...Rxf8
      • 2.gxf8Q#
      • 2.gxf8B#
    • 1...Sd2
      • 2.c6#
    • 1...Sf2
      • 2.Qxh4#
    • 1...Sc3
      • 2.c6#
    • 1...Sg3
      • 2.Qxh4#
    • 1...Sxc5
      • 2.Bxc5#
    • 1...Sg5
      • 2.f6#
    • 1...Sd6
      • 2.cxd6#
    • 1...Sf6
      • 2.Qd6#
  • Tries
    • 1.c6+?
      • 1...Rd6
        • 2.Bxd6#
        • 2.Qe5#
        • 2.Qxd6#
      • 1...Sc5
        • 2.Bxc5#
      • 1...Sd6
        • 2.Bxd6#
      • 1...Qb4!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Sd5#
      • 1...Rxd7
        • 2.Re8#
      • 1...Rxc8
        • 2.dxc8S#
      • 1...Rxf8
        • 2.gxf8Q#
        • 2.gxf8B#
      • 1...Sxc5
        • 2.Bxc5#
      • 1...Re5
        • 2.Qxe5#
      • 1...Rd6
        • 2.Qxd6#
        • 2.cxd6#
      • 1...Sd2
        • 2.c6#
      • 1...Sf2
        • 2.Qxh4#
      • 1...Sc3
        • 2.c6#
      • 1...Sg3
        • 2.Qxh4#
      • 1...Sg5
        • 2.f6#
      • 1...Sd6
        • 2.cxd6#
      • 1...Sf6
        • 2.Qd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • R(f);OGATEB::QAR2(C),XR(f)
    • R(i);OGATE,P_PINB(K),XS(J)::PXR(i)=Q
    • S(c);N_GUARD,P_SPINR(f),S_CUTQ(a)::B(B)+P(E)
    • S(c);OGATE,P_SPINR(f)::QAB(C),XB(d)
    • S(c);OGATE,P_SPINR(f),P_SPINS(c),XP(E)::B(B),XS(c)
    • S(c);N_GUARD,P_SPINR(f),S_CUTB(d)::P(F)
    • S(c);OGATE,P_SPINR(f)::P(E),XS(c)
    • S(c);N_GUARD,P_SPINR(f),SBLOCK::QAB1(C)
  • Tries
    • Try
      • P(E);CHECK
      • Vars
        • S(c);N_GUARD,P_SPINR(f),P_SPINS(c)::B(B),XS(c)
      • Refutation
        • Q(a);P_SPINQ(a)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • R(i);OGATE,XP(G)::R1(I)
      • R(i);OGATE,XR(I)::PXR(i)=S
      • R(i);OGATE,P_PINB(K),XS(J)::PXR(i)=Q
      • S(c);OGATE,P_SPINR(f),P_SPINS(c),XP(E)::B(B),XS(c)
      • R(f);OGATEB::QAR2(C),XR(f)
      • S(c);N_GUARD,P_SPINR(f),S_CUTQ(a)::B(B)+P(E)
      • S(c);OGATE,P_SPINR(f)::QAB(C),XB(d)
      • S(c);N_GUARD,P_SPINR(f),S_CUTB(d)::P(F)
      • S(c);OGATE,P_SPINR(f)::P(E),XS(c)
      • S(c);N_GUARD,P_SPINR(f),SBLOCK::QAB1(C)
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