MESON Chess Problem Database

Problem Display
PID: 72801 (8/5pN1/n7/r3b1P1/p1QBpkbK/2Np2rp/4P3/8 w - - 0 1)

Seilberger, Johann Joseph Petrus Adrianus

Todemann, P

Tijdschrift vd KNSB, 1936

8/5pN1/n7/r3b1P1/p1QBpkbK/2Np2rp/4P3/8

#2

7 + 11

SOLUTION

  • SOUND
  • Sets
    • 1...Rd5
      • 2.Sxd5#
    • 1...Bf3
      • 2.e3#
    • 1...Bf5
      • 2.Sh5#
    • 1...Sc5
      • 2.Sd5#
    • 1...f5
      • 2.Se6#
  • Tries
    • 1.Qxf7+?
      • 1...Bf5
        • 2.Sh5#
        • 2.Se6#
        • 2.Qxf5#
      • 1...Bf6!
    • 1.Qc6?
      • threat
        • 2.Qxe4#
      • 1...Rd5
        • 2.Sxd5#
      • 1...Bf3
        • 2.e3#
      • 1...Bf5
        • 2.Sh5#
      • 1...Sc5
        • 2.Sd5#
      • 1...e3
        • 2.Qe4#
      • 1...f5
        • 2.Se6#
      • 1...Re3!
  • Keys
    • 1.Qd5!
      • threat
        • 2.Qxe4#
      • 1...Rxd5
        • 2.Sxd5#
      • 1...Re3
        • 2.Bxe5#
      • 1...Bf3
        • 2.e3#
      • 1...Bf5
        • 2.Sh5#
      • 1...Sc5
        • 2.Qxe5#
      • 1...e3
        • 2.Bxe5#
        • 2.Qe4#
      • 1...f5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(h);N_GUARD::S(B),XR(h)
    • B(g);SBLOCK,S_CUTR(b)::P(A)
    • B(g);N_GUARD,SBLOCK::S(G)
    • S(j);S_CUTR(h)::S(B)
    • P(k);N_GUARD,SBLOCK,S_CUTB(g)::S(G)
  • Tries
    • Try
      • Q(C);CHECK,XP(k)
      • Refutation
        • B(i);P_PINP(F),P_SPINB(i)
    • Try
      • Q(C);
      • Threat
        • QAR1(C),XP(e)
      • Vars
        • R(h);N_GUARD::S(B),XR(h)
        • B(g);SBLOCK,S_CUTR(b)::P(A)
        • B(g);N_GUARD,SBLOCK::S(G)
        • S(j);S_CUTR(h)::S(B)
        • P(e);::QAR1(C)
        • P(k);N_GUARD,SBLOCK,S_CUTB(g)::S(G)
      • Refutation
        • R(b);
  • Actual
    • Q(C);
    • Threat
      • QAR1(C),XP(e)
    • Vars
      • R(h);XQ(C)::S(B),XR(h)
      • R(b);SBLOCK::B(D),XB(i)
      • B(g);SBLOCK,S_CUTR(b)::P(A)
      • B(g);N_GUARD,SBLOCK::S(G)
      • S(j);S_CUTR(h)::QAB1(C),XB(i)
      • P(k);N_GUARD,SBLOCK,S_CUTB(g)::S(G)
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Developed and maintained by Brian Stephenson.
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