MESON Chess Problem Database

Problem Display
PID: 150945 (3n1r2/8/K2p4/pR1Np2b/3kp3/R3N3/7r/8 w - - 0 1)

Ahues, Herbert Siegfried Oskar

1/2 Prize, Freie Presse, 2010-2011

3n1r2/8/K2p4/pR1Np2b/3kp3/R3N3/7r/8

#2

5 + 9

23 Die Schwalbe 2013

SOLUTION

  • SOUND
  • Tries
    • 1.Sc2+?
      • 1...Kc4
        • 2.Sde3#
        • 2.Sb6#
        • 2.Rc3#
      • 1...Rxc2!
    • 1.Sf5+?
      • 1...Kc4
        • 2.Sde3#
        • 2.Sb6#
        • 2.Rc3#
      • 1...Rxf5!
    • 1.Sb4?
      • threat
        • 2.Rd5#
      • 1...Be2
        • 2.Sbc2#
      • 1...d5
        • 2.Rxd5#
      • 1...Bf7!
    • 1.Se7?
      • threat
        • 2.Rd5#
      • 1...Bf7
        • 2.S7f5#
      • 1...d5
        • 2.Rxd5#
      • 1...Be2!
    • 1.Rb4+?
      • 1...Kc5
        • 2.Rc3#
        • 2.Rc4#
      • 1...axb4!
  • Keys
    • 1.Sb6!
      • threat
        • 2.Rd5#
      • 1...Bf7
        • 2.Sf5#
      • 1...Be2
        • 2.Sc2#
      • 1...d5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);CHECK
      • Refutation
        • R(a);XS(B)
    • Try
      • S(B);CHECK
      • Refutation
        • R(i);XS(B)
    • Try
      • S(D);
      • Threat
        • R1(C)
      • Vars
        • B(f);P_PINR(C),S_CUTR(a)::S(D)
        • P(g);::R1(C),XP(g)
      • Refutation
        • B(f);
    • Try
      • S(D);
      • Threat
        • R1(C)
      • Vars
        • B(f);S_CUTR(i)::S(D)
        • P(g);::R1(C),XP(g)
      • Refutation
        • B(f);P_PINR(C)
    • Try
      • R(C);CHECK
      • Refutation
        • P(d);XR(C)
  • Actual
    • S(D);
    • Threat
      • R1(C)
    • Vars
      • B(f);S_CUTR(i)::S(B)
      • B(f);P_PINR(C),S_CUTR(a)::S(B)
      • P(g);::R1(C),XP(g)
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