MESON Chess Problem Database

Problem Display
PID: 37650 (8/K7/n1p2B1b/2R1n2r/1prkN3/N4B2/1p2Q3/8 w - - 0 1)

Schonholzer, Andreas

1st Prize, Probleemblad 125. TT, 1970

8/K7/n1p2B1b/2R1n2r/1prkN3/N4B2/1p2Q3/8

#2

7 + 9

3751 FIDE Album (1968-1970) 1977
3690 Kunstschach in der Schweiz 1980

SOLUTION

  • SOUND
  • Sets
    • 1...Rc2
      • 2.Sxc2#
    • 1...Rh1
      • 2.Bxe5#
    • 1...Rh2
      • 2.Bxe5#
    • 1...Rh3
      • 2.Bxe5#
    • 1...Rh4
      • 2.Bxe5#
    • 1...Rg5
      • 2.Qd2#
    • 1...Bd2
      • 2.Qxd2#
    • 1...Be3
      • 2.Qxc4#
    • 1...Bg5
      • 2.Bxe5#
    • 1...Bg7
      • 2.Qd2#
    • 1...Bf8
      • 2.Qd2#
  • Tries
    • 1.Rd5+?
      • 1...cxd5
        • 2.Sb5#
      • 1...Kxd5!
    • 1.Qd1+?
      • 1...Bd2
        • 2.Qxd2#
      • 1...Ke3!
  • Keys
    • 1.Sg5!
      • threat
        • 2.Rxc4#
      • 1...Kc3
        • 2.Qe3#
      • 1...Kxc5
        • 2.Qxe5#
      • 1...Rxc5
        • 2.Qd2#
      • 1...Sxc5
        • 2.Bxe5#
      • 1...Rc1
        • 2.Se6#
      • 1...Rc2
        • 2.Se6#
      • 1...Rc3
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 10
  • Sets
    • R(c);N_GUARD::S(B),XR(c)
    • R(f);N_GUARD::B(F),XS(e)
    • R(f);S_CUTB(i)::QAR2(A)
    • B(i);N_GUARD::QAR2(A),XB(i)
    • B(i);SBLOCK::QAR1(A),XR(c)
    • B(i);S_CUTR(f)::B(F),XS(e)
    • B(i);N_GUARD::QAR2(A)
  • Tries
    • Try
      • R(E);CHECK
      • Vars
        • P(h);SBLOCK,XR(E)::S(B)
      • Refutation
        • K(d);N_SPINS(e),P-FLIGHT,XR(E)
    • Try
      • Q(A);CHECK
      • Vars
        • B(i);N_GUARD,P_SPINB(i)::QAR2(A),XB(i)
      • Refutation
        • K(d);N_SPINS(e),S_FLIGHT
  • Actual
    • S(D);
    • Threat
      • R1(E),XR(c)
    • Vars
      • K(d);P_SPINR(c),S_FLIGHT::QAR2(A)
      • K(d);N_SPINS(e),S_FLIGHT,XR(E)::QAR2(A),XS(e)
      • R(c);SBLOCK,XR(E)::QAR2(A)
      • S(g);SBLOCK,XR(E)::B(F),XS(e)
      • R(c);::S(D)
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