MESON Chess Problem Database

Problem Display
PID: 241483 (8/2b1Q1N1/2P2n1r/1Kprn3/2pkp3/2R1p2b/1P5B/8 w - - 0 1)

Hjelle, David

Magyar Sakkelet, 1968

8/2b1Q1N1/2P2n1r/1Kprn3/2pkp3/2R1p2b/1P5B/8

#2

7 + 11

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rd6
      • 2.Qxe5#
    • 1...Rd7
      • 2.Qxc5#
    • 1...Rd8
      • 2.Qxc5#
    • 1...Bf1
      • 2.Sf5#
      • 2.Se6#
    • 1...Bg2
      • 2.Sf5#
      • 2.Se6#
    • 1...Bf5
      • 2.Sxf5#
    • 1...Be6
      • 2.Sxe6#
    • 1...Sd3
      • 2.Rxc4#
    • 1...Seg4
      • 2.Se6#
    • 1...Sfg4
      • 2.Sf5#
  • Keys
    • 1.Bf4!
      • threat
        • 2.Bxe3#
      • 1...Rd6
        • 2.Qxe5#
      • 1...Rd7
        • 2.Qxc5#
      • 1...Rd8
        • 2.Qxc5#
      • 1...Sd3
        • 2.Rxc4#
      • 1...Seg4
        • 2.Se6#
      • 1...Sfg4
        • 2.Sf5#
      • 1...e2
        • 2.Be3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(g);N_GUARD,S_CUTB(k)::QAB1(F),XS(h)
    • R(g);N_GUARD::QAB1(F),XP(f)
    • B(b);N_GUARD::S(G),XB(b)
    • S(h);N_GUARD,SBLOCK::R1(C),XP(c)
    • S(h);S_CUTB(b)::S(G)
    • S(i);S_CUTB(b)::S(G)
  • Actual
    • B(B);
    • Threat
      • B(B),XP(a)
    • Vars
      • R(g);N_GUARD,S_CUTB(k)::QAB1(F),XS(h)
      • R(g);N_GUARD::QAB1(F),XP(f)
      • S(h);N_GUARD,SBLOCK::R1(C),XP(c)
      • S(h);S_CUTB(b)::S(G)
      • S(i);S_CUTB(b)::S(G)
      • P(a);::B(B)
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