MESON Chess Problem Database

Problem Display
PID: 240210 (q4R2/p2p1B1b/8/4pN1p/2Q1PkpB/4p1R1/8/2b3K1 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Problem-Forum, 2015

q4R2/p2p1B1b/8/4pN1p/2Q1PkpB/4p1R1/8/2b3K1

#2

8 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Tries
    • 1.Sxe3?
      • threat
        • 2.Sg2#
      • 1...Qxe4
        • 2.Bg6#
      • 1...Bxe4
        • 2.Be8#
      • 1...Bxe3+!
    • 1.Sg7?
      • threat
        • 2.Sxh5#
      • 1...Qxe4
        • 2.Bg6#
      • 1...Bxe4
        • 2.Be8#
      • 1...Bg6!
    • 1.Bd5?
      • threat
        • 2.Qf1#
      • 1...e2
        • 2.Qxc1#
      • 1...Qxd5!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Qf1#
      • 1...Qxe4
        • 2.Bg6#
      • 1...Bxe4
        • 2.Be8#
      • 1...e2
        • 2.Qxc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);XP(b)
      • Threat
        • S(F)
      • Vars
        • Q(j);N_GUARD,P_SPINQ(j),XP(D)::R(H)+B(G)
        • B(i);N_GUARD,P_SPINB(i),XP(D)::R(H)+B(G)
      • Refutation
        • B(a);CHECK,XS(F)
    • Try
      • S(F);
      • Threat
        • S(F),XP(f)
      • Vars
        • Q(j);N_GUARD,P_SPINQ(j),XP(D)::R(H)+B(G)
        • B(i);N_GUARD,P_SPINB(i),XP(D)::R(H)+B(G)
      • Refutation
        • B(i);
    • Try
      • B(G);
      • Threat
        • QAR(C)
      • Vars
        • P(b);OGATEB::QAB(C),XB(a)
      • Refutation
        • Q(j);XB(G)
  • Actual
    • S(F);
    • Threat
      • QAR(C)
    • Vars
      • Q(j);N_GUARD,P_SPINQ(j),XP(D)::R(H)+B(G)
      • B(i);N_GUARD,P_SPINB(i),XP(D)::R(H)+B(G)
      • P(b);OGATEB::QAB(C),XB(a)
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