MESON Chess Problem Database

Problem Display
PID: 146901 (b3n2B/K2R1Rq1/8/1pN1k2r/2P1B1Pp/2r5/1Q6/1n6 w - - 0 1)

Ahues, Herbert Siegfried Oskar

1st Prize, Schweizerische Schachzeitung, 2006-2007

b3n2B/K2R1Rq1/8/1pN1k2r/2P1B1Pp/2r5/1Q6/1n6

#2

9 + 9

23 Die Schwalbe 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Rf5
      • 2.Rxf5#
    • 1...Rh6
      • 2.Rf5#
    • 1...Rh7
      • 2.Rf5#
    • 1...Rxh8
      • 2.Rf5#
    • 1...Bd5
      • 2.Rxd5#
    • 1...Sd2
      • 2.Qxc3#
    • 1...Sa3
      • 2.Qxc3#
    • 1...Sd6
      • 2.Bxg7#
    • 1...Sc7
      • 2.Bxg7#
  • Tries
    • 1.Sd3+?
      • 1...Kxe4
        • 2.Qe2#
      • 1...Ke6!
    • 1.Bd3?
      • threat
        • 2.Qh2#
      • 1...Rf5
        • 2.Rxf5#
      • 1...Bd5
        • 2.Rxd5#
      • 1...Sd6
        • 2.Bxg7#
      • 1...Sd2
        • 2.Qxc3#
      • 1...Bg2!
    • 1.Rd3?
      • threat
        • 2.Qh2#
      • 1...Sd2
        • 2.Qxc3#
      • 1...Rf5!
    • 1.Rf3?
      • threat
        • 2.Qh2#
      • 1...Rf5
        • 2.Rxf5#
      • 1...Sd6
        • 2.Bxg7#
      • 1...Sd2
        • 2.Qxc3#
      • 1...Bd5!
  • Keys
    • 1.Bf3!
      • threat
        • 2.Qh2#
      • 1...Rf5
        • 2.Rxf5#
      • 1...Bd5
        • 2.Rxd5#
      • 1...Sd6
        • 2.Bxg7#
      • 1...Sd2
        • 2.Qxc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • R(f);N_GUARD::R1(H),XR(f)
    • R(f);N_GUARD::R1(H)
    • R(f);N_GUARD,N_SPINQ(g),XB(I)::R1(H)
    • B(h);N_GUARD::R1(G),XB(h)
    • S(a);N_GUARD::QAB(A),XR(b)
    • S(i);N_GUARD::B(I),XQ(g)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(e);N_SPINQ(g),N_SPINR(b),P-FLIGHT,XB(C)::QAR2(A)
      • Refutation
        • K(e);N_SPINQ(g),N_SPINR(b),P-FLIGHT
    • Try
      • B(C);
      • Threat
        • QAB(A)
      • Vars
        • R(f);N_GUARD::R1(H),XR(f)
        • B(h);N_GUARD::R1(G),XB(h)
        • S(i);N_GUARD::B(I),XQ(g)
        • S(a);N_GUARD::QAB(A),XR(b)
      • Refutation
        • B(h);
    • Try
      • R(G);P_SPINR(H)
      • Threat
        • QAB(A)
      • Vars
        • S(a);N_GUARD::QAB(A),XR(b)
      • Refutation
        • R(f);
    • Try
      • R(H);P_SPINR(G)
      • Threat
        • QAB(A)
      • Vars
        • R(f);N_GUARD::R1(H),XR(f)
        • S(i);N_GUARD::B(I),XQ(g)
        • S(a);N_GUARD::QAB(A),XR(b)
      • Refutation
        • B(h);
  • Actual
    • B(C);
    • Threat
      • QAB(A)
    • Vars
      • R(f);N_GUARD::R1(H),XR(f)
      • B(h);N_GUARD::R1(G),XB(h)
      • S(i);N_GUARD::B(I),XQ(g)
      • S(a);N_GUARD::QAB(A),XR(b)
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