MESON Chess Problem Database

Problem Display
PID: 241622 (3R1R1K/QB2N2p/7r/2N1kP2/4n3/b2p3r/bp1B4/n1q5 w - - 0 1)

Ellerman, Arnoldo

Magyar Sakkvilag, 1950

3R1R1K/QB2N2p/7r/2N1kP2/4n3/b2p3r/bp1B4/n1q5

#2

9 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rh1
      • 2.Sxd3#
    • 1...Rh2
      • 2.Sxd3#
    • 1...R3h4
      • 2.Sxd3#
    • 1...R3h5
      • 2.Sxd3#
    • 1...R6h4
      • 2.Sc6#
    • 1...R6h5
      • 2.Sc6#
    • 1...Rc6
      • 2.Sxc6#
    • 1...Bb1
      • 2.Rd5#
    • 1...Bd5
      • 2.Rxd5#
    • 1...Be6
      • 2.Sc6#
    • 1...Sb3
      • 2.Rd5#
    • 1...Sg3
      • 2.Sxd3#
    • 1...Sd6
      • 2.Sd7#
    • 1...Sf6
      • 2.Qb8#
  • Keys
    • 1.Se6!
      • threat
        • 2.Qd4#
      • 1...Qg1
        • 2.Sc6#
        • 2.Bf4#
      • 1...Qc3
        • 2.Bf4#
      • 1...Qc4
        • 2.Bf4#
      • 1...Qc5
        • 2.Bf4#
      • 1...Bc5
        • 2.Sc6#
      • 1...Sc2
        • 2.Sc6#
      • 1...Sb3
        • 2.Rd5#
      • 1...Sc5
        • 2.Qb8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 13
  • Sets
    • R(g);N_GUARD::S(B),XP(f)
    • R(j);N_GUARD::S(F)
    • R(j);N_GUARD::S(F),XR(j)
    • B(c);N_GUARD::R1(G)
    • B(c);N_GUARD::R1(G),XB(c)
    • B(c);S_CUTR(j)::S(F)
    • S(a);S_CUTB(c)::R1(G)
    • S(h);S_CUTR(g)::S(B),XP(f)
    • S(h);SBLOCK::S(B)
    • S(h);N_GUARD,S_CUTR(j)::QAB(D)
  • Actual
    • S(B);
    • Threat
      • QAB1(D)
    • Vars
      • Q(b);N_GUARD::B(A)
      • B(e);S_CUTQ(b)::S(F)
      • S(a);S_CUTQ(b)::S(F)
      • S(a);S_CUTB(c)::R1(G)
      • S(h);N_GUARD,S_CUTB(e),S_CUTQ(b)::QAB(D)
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