MESON Chess Problem Database

Problem Display
PID: 40697 (N3R1b1/3p4/1Rqkn2p/3N4/4p2r/2B1P2n/Q7/2K5 w - - 0 1)

Ellerman, Arnoldo

Tijdschrift vd NSB, 1918

N3R1b1/3p4/1Rqkn2p/3N4/4p2r/2B1P2n/Q7/2K5

#2

8 + 9

119 Tidskrift for Schack 1919
3360 Simple Two-move Themes 1924

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Bb4#
    • 1...Sc5
      • 2.Be5#
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qd5#
      • 1...Kc5
        • 2.Bb4#
      • 1...Rh5
        • 2.Sxe4#
      • 1...Shf4
        • 2.Sxe4#
      • 1...Sd4
        • 2.Qa3#
      • 1...Sef4
        • 2.Sxe4#
        • 2.Qa3#
      • 1...Sc5
        • 2.Be5#
      • 1...Seg5
        • 2.Qa3#
      • 1...Sc7
        • 2.Qa3#
      • 1...Sg7
        • 2.Qa3#
      • 1...Sd8
        • 2.Qa3#
      • 1...Sf8
        • 2.Qa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 0
  • Sets
    • K(e);N_PINB(C),N_SPINQ(d),S_FLIGHT::B(C)
    • S(f);N_PINB(C),SBLOCK::B(C)
  • Actual
    • S(E);
    • Threat
      • QAR1(B)
    • Vars
      • K(e);N_PINB(C),N_SPINQ(d),S_FLIGHT::B(C)
      • R(c);N_GUARD::S(E),XP(b)
      • S(a);S_CUTR(c)::S(E),XP(b)
      • S(f);N_GUARD::QAB(B)
      • S(f);N_PINB(C),SBLOCK::B(C)
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