MESON Chess Problem Database

Problem Display
PID: 233905 (1B2r3/2P5/R3n3/2pk4/bPpP2R1/1qb2P1N/r1n1P2K/1B5Q w - - 0 1)

Hannemann, Knud Harald

Skakbladet, 1929

1B2r3/2P5/R3n3/2pk4/bPpP2R1/1qb2P1N/r1n1P2K/1B5Q

#2

12 + 10

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...cxd4
      • 2.f4#
  • Tries
    • 1.c8Q?
      • threat
        • 2.Rd6#
      • 1...Bxd4
        • 2.e4#
      • 1...Scxd4
        • 2.Be4#
      • 1...Sexd4
        • 2.Sf4#
        • 2.Qxc5#
      • 1...cxd4
        • 2.f4#
      • 1...Rd8
        • 2.Qxe6#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Sc7!
  • Keys
    • 1.c8S!
      • threat
        • 2.Rd6#
      • 1...Bxd4
        • 2.e4#
      • 1...Scxd4
        • 2.Be4#
      • 1...Sexd4
        • 2.Sf4#
      • 1...cxd4
        • 2.f4#
      • 1...Rd8
        • 2.Se7#
      • 1...Bc6
        • 2.Sb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • P(g);SBLOCK,XP(H)::QAB(B)+P(E)
  • Tries
    • Try
      • P(K);
      • Threat
        • R1(J)
      • Vars
        • B(d);SBLOCK,XP(H)::P(C)
        • S(b);OGATE,P_PINP(C),SBLOCK,XP(H)::B(A)
        • P(g);SBLOCK,XP(H)::QAB(B)+P(E)
        • R(j);N_GUARD::QAB1(K),XS(i)
        • B(e);N_GUARD::QAB1(K),XB(e)
      • Refutation
        • S(i);
  • Actual
    • P(K);
    • Threat
      • R1(J)
    • Vars
      • B(d);SBLOCK,XP(H)::P(C)
      • S(b);OGATE,P_PINP(C),SBLOCK,XP(H)::B(A)
      • S(i);N_GUARD,SBLOCK,XP(H)::S(F)
      • P(g);SBLOCK,XP(H)::QAB(B)+P(E)
      • R(j);N_GUARD::S(K)
      • B(e);SBLOCK::S(K)
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