MESON Chess Problem Database

Problem Display
PID: 150573 (3nB3/1b2B3/1N1pkPpr/qp1p2Rp/1p1Q4/2p1N3/8/2b4K w - - 0 1)

Ahues, Herbert Siegfried Oskar

Deutsche Schachblatter, 0000

3nB3/1b2B3/1N1pkPpr/qp1p2Rp/1p1Q4/2p1N3/8/2b4K

#2

8 + 13

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Bxe3
      • 2.Qxe3#
    • 1...Ba6
      • 2.Qxd5#
    • 1...Bc8
      • 2.Qxd5#
    • 1...Sc6
      • 2.Qxd5#
    • 1...Sf7
      • 2.Bd7#
    • 1...h4
      • 2.Qg4#
  • Tries
    • 1.Sexd5?
      • threat
        • 2.Qe4#
      • 1...Bxd5+
        • 2.Qxd5#
      • 1...Sc6
        • 2.Sc7#
      • 1...Sf7
        • 2.Bd7#
      • 1...Bf4!
    • 1.Sbxd5?
      • threat
        • 2.Qe4#
      • 1...Bxd5+
        • 2.Qxd5#
      • 1...Sc6
        • 2.Sf4#
      • 1...Sf7!
  • Keys
    • 1.Rxd5!
      • threat
        • 2.Qe4#
      • 1...Bxd5+
        • 2.Qxd5#
      • 1...Sc6
        • 2.Rxd6#
      • 1...Sf7
        • 2.Bd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 4
  • Sets
    • B(a);OGATE,XS(B)::QAR(C),XB(a)
    • B(l);N_GUARD::QAB1(C),XP(f)
    • S(m);S_CUTB(l)::QAB1(C),XP(f)
    • S(m);SBLOCK::B(H)
    • P(g);N_GUARD::QAB(C)
  • Tries
    • Try
      • S(B);P_SPINS(B),XP(f)
      • Threat
        • QAR2(C)
      • Vars
        • B(l);CHECK,OGATE,XS(B)::QAB1(C),XB(l)
        • S(m);N_PINS(B)::S(B)
        • S(m);SBLOCK::B(H)
      • Refutation
        • B(a);
    • Try
      • S(E);P_SPINS(E),XP(f)
      • Threat
        • QAR2(C)
      • Vars
        • B(l);CHECK,OGATE,XS(E)::QAB1(C),XB(l)
        • S(m);N_PINS(E)::S(E)
      • Refutation
        • S(m);
  • Actual
    • R(D);P_SPINR(D),XP(f)
    • Threat
      • QAR2(C)
    • Vars
      • B(l);CHECK,OGATE,XR(D)::QAB1(C),XB(l)
      • S(m);N_PINR(D)::R1(D),XP(h)
      • S(m);SBLOCK::B(H)
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