MESON Chess Problem Database

Problem Display
PID: 38283 (6R1/8/6NK/8/6k1/r7/4PQ2/8 w - - 0 1)

Hermanson, Halvar

Svenska Dagbladet, 1929

6R1/8/6NK/8/6k1/r7/4PQ2/8

#2

5 + 2

2012 Miniature Chess Problems from Many Countries 1981
3310 2345 Chess Problems 1997
3713 Snap 2001
5454 Near Snap 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Kh3
      • 2.Sf4#
    • 1...Ra1
      • 2.Qf3#
    • 1...Ra2
      • 2.Qf3#
    • 1...Rf3
      • 2.Qxf3#
    • 1...Rh3+
      • 2.Sh4#
    • 1...Ra4
      • 2.Qf3#
    • 1...Ra5
      • 2.Qf3#
    • 1...Ra6
      • 2.Qf3#
    • 1...Ra7
      • 2.Qf3#
    • 1...Ra8
      • 2.Qf3#
  • Keys
    • 1.e4!
      • threat
        • 2.Sf4#
      • 1...Rh3+
        • 2.Sh4#
      • 1...Kh3
        • 2.Sf4#
      • 1...Rf3
        • 2.Qh4#
      • 1...Rg3
        • 2.Qf5#
      • 1...Ra5
        • 2.Qg2#
      • 1...Ra6
        • 2.Qg2#
      • 1...Ra7
        • 2.Qg2#
      • 1...Ra8
        • 2.Qg2#

Anticipated by 17285(1929)

This anticipates 172312(1996)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 1
    • REMOVED MATES = 3
  • Sets
    • K(b);S_FLIGHT::S(C)
    • R(a);N_GUARD::QAB1(B)
    • R(a);N_GUARD::QAB1(B),XR(a)
    • R(a);CHECK,SBLOCK::R(E)+S(C)
    • R(a);N_GUARD,P_PINS(C)::QAB1(B)
  • Actual
    • P(A);
    • Threat
      • R(E)+S(C)
    • Vars
      • R(a);CHECK,SBLOCK::R(E)+S(C)
      • K(b);S_FLIGHT::S(C)
      • R(a);SBLOCK::QAR1(B)
      • R(a);SBLOCK::QAB1(B)
      • R(a);N_GUARD::QAR2(B)
      • R(a);N_GUARD,P_PINS(C)::QAR2(B)
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