MESON Chess Problem Database

Problem Display
PID: 140113 (4R3/qBp1N3/r1Q1n2K/b2N1p1P/3BkPp1/2p2p2/8/1b1R4 w - - 0 1)

Ellerman, Arnoldo

Problemas, 1945

4R3/qBp1N3/r1Q1n2K/b2N1p1P/3BkPp1/2p2p2/8/1b1R4

#2

10 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Bb6
      • 2.Qxe6#
    • 1...Sxf4
      • 2.Sxc3#
      • 2.Sf6#
  • Keys
    • 1.Qc4!
      • threat
        • 2.Re1#
      • 1...Sxd4+
        • 2.Sc6#
      • 1...Sxf4+
        • 2.Sf6#
      • 1...Sc5+
        • 2.Bf6#
      • 1...Sg5+
        • 2.Bb6#
      • 1...Sg7+
        • 2.Bb6#
      • 1...Sd8+
        • 2.Bb6#
      • 1...Sf8+
        • 2.Bb6#
      • 1...f2
        • 2.Qe2#
      • 1...Bd3
        • 2.Qxd3#
      • 1...c2
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 1
  • Sets
    • B(f);S_CUTR(h)::QAR2(F),XS(i)
  • Actual
    • Q(F);
    • Threat
      • R(A)
    • Vars
      • S(i);CHECK,P_SPINS(i),XB(B)::R(J)+S(I)
      • S(i);CHECK,SBLOCK,XP(C)::B(H)+S(D),DCHECK
      • S(i);CHECK,N_GUARD,S_CUTQ(j)::QAR(F)+B(B)
      • S(i);CHECK,N_GUARD::QAR(F)+B(B)
      • P(c);N_GUARD::QAR2(F)
      • B(a);N_GUARD::QAB1(F),XB(a)
      • P(b);S_CUTB(a)::QAB1(F)
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Developed and maintained by Brian Stephenson.
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