MESON Chess Problem Database

Problem Display
PID: 42842 (3K4/7b/2p5/2BR4/BPkN2p1/6r1/5N2/4Q3 w - - 0 1)

Pachl, Franz

Schach-Echo, 1977

3K4/7b/2p5/2BR4/BPkN2p1/6r1/5N2/4Q3

#2

8 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Kxd5
      • 2.Qe6#
    • 1...Rg1
      • 2.Bb3#
    • 1...Rg2
      • 2.Bb3#
    • 1...Rb3
      • 2.Bxb3#
    • 1...Bd3
      • 2.Bb3#
    • 1...cxd5
      • 2.Bb5#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Rd4#
      • 1...Kxd5
        • 2.Qe4#
      • 1...cxd5
        • 2.Sd6#
      • 1...Rd3!
    • 1.Bb5+?
      • 1...Kxd5
        • 2.Qe6#
      • 1...cxb5!
  • Keys
    • 1.Sf3!
      • threat
        • 2.Rd4#
      • 1...Kxd5
        • 2.Bb3#
      • 1...cxd5
        • 2.Se5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • K(b);OGATEB,S_FLIGHT,XR(G)::QAB1(A)
    • R(a);N_GUARD::B(C)
    • R(a);N_GUARD::B(C),XR(a)
    • B(e);S_CUTR(a)::B(C)
    • P(d);N_GUARD,SBLOCK,XR(G)::B(C)
  • Tries
    • Try
      • S(E);
      • Threat
        • R1(G)
      • Vars
        • K(b);S_FLIGHT,XR(G)::QAB1(A)
        • P(d);SBLOCK,XR(G)::S(E)
      • Refutation
        • R(a);P_PINR(G)
    • Try
      • B(C);CHECK
      • Vars
        • K(b);S_FLIGHT,XR(G)::QAB1(A)
      • Refutation
        • P(d);XB(C)
  • Actual
    • S(E);
    • Threat
      • R1(G)
    • Vars
      • K(b);S_FLIGHT,XR(G)::B(C)
      • P(d);SBLOCK,XR(G)::S(E)
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