MESON Chess Problem Database

Problem Display
PID: 82022 (1B2R3/nr2p3/5R2/2p1p1P1/2Bpk1K1/q1bN1N2/5P2/1b6 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Sakkelet, 1996

1B2R3/nr2p3/5R2/2p1p1P1/2Bpk1K1/q1bN1N2/5P2/1b6

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qc1
      • 2.Sxc5#
    • 1...Qb2
      • 2.Sxc5#
    • 1...Qa1
      • 2.Sxc5#
    • 1...Qa2
      • 2.Sxc5#
    • 1...Qb3
      • 2.Sxc5#
    • 1...Qa4
      • 2.Sxc5#
    • 1...Qa6
      • 2.Sxc5#
    • 1...Rb4
      • 2.Sxc5#
    • 1...Ba1
      • 2.Sd2#
    • 1...Bb2
      • 2.Sd2#
    • 1...Bd2
      • 2.Sxd2#
  • Tries
    • 1.Sdxe5?
      • threat
        • 2.Rf4#
      • 1...exf6
        • 2.Sd7#
      • 1...Bd2
        • 2.Sxd2#
      • 1...Qc1!
    • 1.Sfxe5?
      • threat
        • 2.Rf4#
      • 1...exf6
        • 2.Sd7#
      • 1...Qc1
        • 2.Sxc5#
      • 1...Bd2!
    • 1.Rxe7?
      • threat
        • 2.Rf4#
        • 2.Rxe5#
      • 1...Sc6
        • 2.Rf4#
      • 1...Qc1
        • 2.Sxc5#
        • 2.Rxe5#
      • 1...Bd2
        • 2.Sxd2#
        • 2.Rxe5#
      • 1...Rxe7!
    • 1.g6?
      • threat
        • 2.Sg5#
      • 1...Qc1
        • 2.Sxc5#
      • 1...Bd2
        • 2.Sxd2#
      • 1...exf6!
  • Keys
    • 1.Bxe5!
      • threat
        • 2.Rf4#
      • 1...exf6
        • 2.Bc7#
      • 1...Qc1
        • 2.Sxc5#
      • 1...Bd2
        • 2.Sxd2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 9
  • Sets
    • Q(b);N_GUARD::S(B),XP(f)
    • R(i);S_CUTQ(b)::S(B),XP(f)
    • B(c);N_GUARD::S(C)
    • B(c);N_GUARD::S(C),XB(c)
  • Tries
    • Try
      • S(B);XP(g)
      • Threat
        • R1(G)
      • Vars
        • P(j);XR(G)::R(I)+S(B)
        • B(c);N_GUARD::S(C),XB(c)
      • Refutation
        • Q(b);
    • Try
      • S(C);XP(g)
      • Threat
        • R1(G)
      • Vars
        • P(j);XR(G)::R(I)+S(C)
        • Q(b);N_GUARD::S(B),XP(f)
      • Refutation
        • B(c);
    • Try
      • R(I);P_PINP(g),XP(j)
      • Threat
        • DUALS(2)
      • Vars
        • S(h);::R1(G)
      • Refutation
        • R(i);N_SPINP(g),XR(I)
    • Try
      • P(F);
      • Threat
        • S(C)
      • Vars
        • Q(b);N_GUARD::S(B),XP(f)
        • B(c);N_GUARD::S(C),XB(c)
      • Refutation
        • P(j);P_SPINP(g),XR(G)
  • Actual
    • B(H);XP(g)
    • Threat
      • R1(G)
    • Vars
      • P(j);OGATEB,XR(G)::R(I)+B(H)
      • Q(b);N_GUARD::S(B),XP(f)
      • B(c);N_GUARD::S(C),XB(c)
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