MESON Chess Problem Database

Problem Display
PID: 149572 (8/1p1B4/Np2p3/pPn1P3/k3p3/4Pp2/2PK1P2/2BQ4 w - - 0 1)

Dehler, Ernst Georg

Tidskrift for Schack, 1912

8/1p1B4/Np2p3/pPn1P3/k3p3/4Pp2/2PK1P2/2BQ4

#2

10 + 8

15148 Sadier Collection 2014

SOLUTION

  • SOUND
  • Sets
    • 1...Sb3+
      • 2.cxb3#
    • 1...Sd3
      • 2.cxd3#
      • 2.c3#
      • 2.c4#
    • 1...Sxa6
      • 2.c3#
    • 1...Sxd7
      • 2.c4#
  • Tries
    • 1.Sxc5+?
      • 1...bxc5
        • 2.c3#
      • 1...Kb4!
    • 1.Bb2?
      • threat
        • 2.Qa1#
      • 1...Sb3+
        • 2.cxb3#
      • 1...Sxa6
        • 2.c3#
      • 1...Sxd7
        • 2.c4#
      • 1...bxa6!
    • 1.Be8?
      • 1...Sb3+
        • 2.cxb3#
      • 1...Sxa6
        • 2.c3#
      • 1...Sd7
        • 2.c4#
      • 1...Sd3
        • 2.cxd3#
        • 2.c3#
        • 2.c4#
      • 1...bxa6!
  • Keys
    • 1.Ke1!
      • threat
        • 2.Qd4#
      • 1...Sd3+
        • 2.cxd3#
      • 1...Sxa6
        • 2.c3#
      • 1...Sxd7
        • 2.c4#
      • 1...Sb3
        • 2.cxb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(e);CHECK,OGATE::P(C),XS(e)
    • S(e);N_GUARD,XS(I)::QAB(B)+P(C)
    • S(e);N_GUARD,XB(J)::QAB(B)+P(C)
  • Tries
    • Try
      • S(I);CHECK,XS(e)
      • Vars
        • P(f);XS(I)::QAB(B)+P(C)
      • Refutation
        • K(b);P-FLIGHT
    • Try
      • B(A);
      • Threat
        • QAR(B)
      • Vars
        • S(e);CHECK,OGATE::P(C),XS(e)
        • S(e);N_GUARD,XS(I)::QAB(B)+P(C)
        • S(e);N_GUARD,XB(J)::QAB(B)+P(C)
      • Refutation
        • P(h);XS(I)
    • Try
      • B(J);
      • Vars
        • S(e);CHECK,OGATE::P(C),XS(e)
        • S(e);N_GUARD,XS(I)::QAB(B)+P(C)
        • S(e);N_GUARD::QAB(B)+P(C)
      • Refutation
        • P(h);XS(I)
  • Actual
    • K(D);S_FLIGHT
    • Threat
      • QAR(B)
    • Vars
      • S(e);CHECK,OGATE::QAB(B)+P(C),XS(e)
      • S(e);N_GUARD,XS(I)::QAB(B)+P(C)
      • S(e);N_GUARD,XB(J)::QAB(B)+P(C)
      • S(e);OGATE::P(C),XS(e)
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