MESON Chess Problem Database

Problem Display
PID: 239510 (8/1p2Q3/4P3/RN1pkr1n/2P5/4B1b1/2KN4/8 w - - 0 1)

Hermanson, Halvar

Magyar Sakkelet, 1959

8/1p2Q3/4P3/RN1pkr1n/2P5/4B1b1/2KN4/8

#2

8 + 6

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bf4
      • 2.Bd4#
    • 1...Sf4
      • 2.Bd4#
    • 1...Sf6
      • 2.Qd6#
  • Tries
    • 1.Sd6?
      • threat
        • 2.Rxd5#
      • 1...Sf6
        • 2.Sf7#
      • 1...Sf4
        • 2.Sf3#
      • 1...b5!
  • Keys
    • 1.Sd4!
      • threat
        • 2.Rxd5#
      • 1...Sf6
        • 2.Qc7#
      • 1...Sf4
        • 2.S4f3#
      • 1...b5
        • 2.Sc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);SBLOCK::B(C)
    • S(e);SBLOCK::B(C)
    • S(e);SBLOCK::QAB1(H)
  • Tries
    • Try
      • S(F);P_PINP(b)
      • Threat
        • R1(E),XP(b)
      • Vars
        • S(e);S_CUTR(d)::S(F)
        • S(e);S_CUTR(d)::S(B)
      • Refutation
        • P(f);N_SPINP(b)
  • Actual
    • S(F);P_PINP(b)
    • Threat
      • R1(E),XP(b)
    • Vars
      • S(e);SBLOCK::QAB(H)
      • S(e);S_CUTR(d)::S(F)
      • P(f);N_GUARD,N_SPINP(b)::S(F)
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