MESON Chess Problem Database

Problem Display
PID: 233497 (4r1N1/2RB2b1/1n1pPpR1/1p1kP3/2p1r3/3PP3/4N2B/1nQ4K w - - 0 1)

Supp, Walter

Freie Presse, 1995

4r1N1/2RB2b1/1n1pPpR1/1p1kP3/2p1r3/3PP3/4N2B/1nQ4K

#2

12 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxe5
      • 2.Sf4#
    • 1...Re7
      • 2.Sxe7#
    • 1...Ra8
      • 2.Se7#
    • 1...Rb8
      • 2.Se7#
    • 1...Rc8
      • 2.Se7#
    • 1...Rd8
      • 2.Se7#
    • 1...Rf8
      • 2.Se7#
    • 1...Bh6
      • 2.Sxf6#
    • 1...Bf8
      • 2.Sxf6#
    • 1...Sd2
      • 2.Sc3#
    • 1...Sa3
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...cxd3
      • 2.Qc6#
  • Keys
    • 1.Qa3!
      • threat
        • 2.Qxd6#
      • 1...Rxe5
        • 2.Sf4#
      • 1...Rxe6
        • 2.Bc6#
      • 1...Sxa3
        • 2.Sc3#
      • 1...dxe5
        • 2.Qc5#
      • 1...fxe5
        • 2.Bc6#
      • 1...Bf8
        • 2.Sxf6#
      • 1...Sc8
        • 2.Qa8#
      • 1...b4
        • 2.Qa5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 10
  • Sets
    • R(c);N_GUARD,SBLOCK,XP(G)::S(C)
    • R(j);N_GUARD::S(L),XR(j)
    • R(j);N_GUARD::S(L)
    • B(i);N_GUARD::S(L),XP(h)
    • S(a);N_GUARD::S(C)
    • S(a);N_GUARD::S(C),XS(a)
    • P(b);OGATE,XP(E)::QAB1(A)
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XP(g)
    • Vars
      • R(c);N_GUARD,SBLOCK,XP(G)::S(C)
      • R(j);SBLOCK,XP(H)::B(K)
      • S(a);N_GUARD,XQ(A)::S(C)
      • P(g);N_GUARD,XP(G)::QAR1(A)
      • P(h);XP(G)::B(K)
      • B(i);N_GUARD::S(L),XP(h)
      • S(f);N_GUARD,S_CUTR(j)::QAB(A)
      • P(d);OGATEB::QAR(A)
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