MESON Chess Problem Database

Problem Display
PID: 64846 (2R1BK2/1P2P2b/q1Pk1P2/b2np2Q/nPP1P3/N5N1/3B4/3R4 w - - 0 1)

Goldschmeding, Cornelis

1st Prize, Cheron MT, 1983-1985

2R1BK2/1P2P2b/q1Pk1P2/b2np2Q/nPP1P3/N5N1/3B4/3R4

#2

15 + 7

3748 FIDE Album (1983-1985) 1992

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc6
      • 2.Rxc6#
  • Tries
    • 1.Sb5+?
      • 1...Ke6
        • 2.Qf7#
      • 1...Qxb5!
    • 1.Sf5+?
      • 1...Ke6
        • 2.Qf7#
      • 1...Bxf5!
    • 1.Rd8+?
      • 1...Ke6
        • 2.Qf7#
      • 1...Kc7
        • 2.b8Q#
      • 1...Bxd8!
    • 1.c5+?
      • 1...Ke6
        • 2.Qf7#
      • 1...Sxc5!
  • Keys
    • 1.Qf7!
      • threat
        • 2.Qxd5#
      • 1...Qxc4
        • 2.Sxc4#
      • 1...Qxc6
        • 2.Rxc6#
      • 1...Bxe4
        • 2.Sxe4#
      • 1...Sxb4
        • 2.Bxb4#
      • 1...Sxf6
        • 2.Qxf6#
      • 1...Sxe7
        • 2.Qxe7#
      • 1...Qb5
        • 2.Sxb5#
      • 1...Bg8
        • 2.Sf5#
      • 1...Sac3
        • 2.c5#
      • 1...Sab6
        • 2.c5#
      • 1...Sdc3
        • 2.Bxc3#
      • 1...Se3
        • 2.Bxe3#
      • 1...Sf4
        • 2.Bxf4#
      • 1...Sdb6
        • 2.b8Q#
        • 2.b8B#
      • 1...Sc7
        • 2.Rd8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 13
    • REMOVED MATES = 0
  • Sets
    • Q(e);OGATE,XP(I)::R1(M),XQ(e)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(f);P-FLIGHT::QAB1(H)
      • Refutation
        • Q(e);XS(C)
    • Try
      • S(D);CHECK
      • Vars
        • K(f);P-FLIGHT::QAB1(H)
      • Refutation
        • B(g);XS(D)
    • Try
      • R(M);CHECK
      • Vars
        • K(f);P-FLIGHT::QAB1(H)
        • K(f);S_FLIGHT::P=Q
      • Refutation
        • B(b);XR(M)
    • Try
      • P(F);CHECK
      • Vars
        • K(f);P-FLIGHT::QAB1(H)
      • Refutation
        • S(a);XP(F)
  • Actual
    • Q(H);
    • Threat
      • QAR1(H),XS(c)
    • Vars
      • Q(e);XP(F)::S(C),XQ(e)
      • Q(e);OGATE,XP(I)::R1(M),XQ(e)
      • B(g);XP(G)::S(D),XB(g)
      • S(c);OGATE,XP(E)::R(A)+B(B),DCHECK,XS(c)
      • S(c);OGATE,XP(J)::QAR2(H),XS(c)
      • S(c);OGATE,XP(L)::QAB1(H),XS(c)
      • Q(e);N_GUARD::S(C),XQ(e)
      • B(g);N_GUARD::S(D)
      • S(a);N_GUARD::P(F)
      • S(c);OGATEB::R(A)+B(B),XS(c)
      • S(c);N_GUARD,S_CUTB(b)::P=Q
      • S(c);SBLOCK,S_CUTB(b)::R(M)
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