MESON Chess Problem Database

Problem Display
PID: 237284 (K3N3/1BBQ1Rqb/2P2n2/4N2p/2p1k2r/3p2p1/3P4/5R2 w - - 0 1)

Ellerman, Arnoldo

Schweizerische Arbeiter Schachzeitung, 1942

K3N3/1BBQ1Rqb/2P2n2/4N2p/2p1k2r/3p2p1/3P4/5R2

#2

10 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Qg4
      • 2.Sxf6#
    • 1...Rf4
      • 2.Re1#
    • 1...Sg4
      • 2.R1f4#
      • 2.R7f4#
    • 1...Sxe8
      • 2.Re1#
    • 1...Sg8
      • 2.Re1#
    • 1...c3
      • 2.Qxd3#
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qe6#
      • 1...Qxf7
        • 2.Sg5#
      • 1...Sxd7
        • 2.cxd7#
      • 1...Sxe8
        • 2.Re1#
      • 1...Qg4
        • 2.Sxf6#
      • 1...Qg5
        • 2.Sxg5#
      • 1...Bf5
        • 2.Qd4#
      • 1...Sg4
        • 2.Rf4#
      • 1...Sd5
        • 2.Sd6#
      • 1...Sg8
        • 2.Re1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • Q(h);N_GUARD::S(J),XS(g)
    • R(e);SBLOCK::R(A)
    • S(g);XS(J)::R(A)
    • S(g);::R(A)
    • P(c);N_GUARD::QAB1(G),XP(a)
  • Actual
    • S(C);
    • Threat
      • QAR2(G)
    • Vars
      • Q(h);N_GUARD,XR(H)::S(C)
      • S(g);OGATE,XQ(G)::B(E)+P(D),XS(g)
      • S(g);XS(J)::R(A)
      • Q(h);N_GUARD::S(J),XS(g)
      • Q(h);N_GUARD::S(C),XQ(h)
      • B(i);SBLOCK::QAR1(G)
      • S(g);OGATE::R1(H)
      • S(g);SBLOCK::S(J)
      • S(g);::R(A)
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Developed and maintained by Brian Stephenson.
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