MESON Chess Problem Database

Problem Display
PID: 158603 (3R3B/8/R4PB1/1r2kn1r/p2N2Qn/2P2P2/qN1PK3/1b6 w - - 0 1)

Ceder, Sven Ture

1st HM., Bamahane, 1951

3R3B/8/R4PB1/1r2kn1r/p2N2Qn/2P2P2/qN1PK3/1b6

#2

12 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qc4+
      • 2.Sxc4#
    • 1...Qe6
      • 2.Rxe6#
    • 1...Qa1
      • 2.Sc4#
      • 2.Re6#
    • 1...Qxb2
      • 2.Re6#
    • 1...Qa3
      • 2.Sc4#
      • 2.Re6#
    • 1...Rb3
      • 2.Sc4#
      • 2.Re6#
    • 1...Rd5
      • 2.Re6#
    • 1...Bd3+
      • 2.Sxd3#
    • 1...Be4
      • 2.Qxe4#
      • 2.f4#
    • 1...Sxf3
      • 2.Sxf3#
    • 1...Se3
      • 2.Sc6#
      • 2.Qg3#
      • 2.f4#
    • 1...Sg3+
      • 2.Qxg3#
    • 1...Sxd4+
      • 2.Qxd4#
      • 2.cxd4#
    • 1...Sh6
      • 2.Sc6#
      • 2.Qg3#
      • 2.f4#
      • 2.f7#
    • 1...Se7
      • 2.Qg3#
      • 2.f4#
    • 1...Sg7
      • 2.Qg3#
      • 2.f4#
  • Tries
    • 1.f7+?
      • 1...Sg7
        • 2.Bxg7#
        • 2.Qg3#
        • 2.f4#
      • 1...Rxh8!
  • Keys
    • 1.c4!
      • threat
        • 2.Re6#
      • 1...Qxc4+
        • 2.Sxc4#
      • 1...Bd3+
        • 2.Sxd3#
      • 1...Sg3+
        • 2.Qxg3#
      • 1...Sxd4+
        • 2.Qxd4#
      • 1...Rb6
        • 2.Rd5#
      • 1...Sd6
        • 2.Sc6#
      • 1...Sg7
        • 2.Qg3#
        • 2.f4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 4
  • Sets
    • Q(b);CHECK,N_GUARD::S(A),XQ(b)
    • Q(b);N_GUARD::R1(H),XQ(b)
    • Q(b);N_GUARD,P_PINP(B),XS(A)::R1(H)
    • R(e);S_CUTQ(b)::R1(H)
    • B(a);CHECK,N_GUARD::S(A),XB(a)
    • S(d);XP(E)::S(F),XS(d)
    • S(g);CHECK,N_GUARD::QAB(G),XS(g)
  • Tries
    • Try
      • P(I);CHECK
      • Refutation
        • R(h);XB(L)
  • Actual
    • P(D);
    • Threat
      • R1(H)
    • Vars
      • Q(b);CHECK,XP(D)::S(A),XQ(b)
      • B(a);CHECK,N_GUARD::S(A),XB(a)
      • S(g);CHECK,N_GUARD::QAB(G),XS(g)
      • S(g);CHECK,OGATE,XS(F)::QAB1(G),XS(g)
      • R(e);N_GUARD::R1(K)
      • S(g);::S(F)
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