MESON Chess Problem Database

Problem Display
PID: 232649 (1b6/6p1/K2p2Q1/1P1kP3/N7/1pP5/3NRr2/n4rBb w - - 0 1)

Hoffmann, Fritz

Freie Presse, 1979

1b6/6p1/K2p2Q1/1P1kP3/N7/1pP5/3NRr2/n4rBb

#2

9 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rg2
      • 2.Sb6#
      • 2.c4#
    • 1...Rh2
      • 2.Sb6#
      • 2.c4#
    • 1...Rf3
      • 2.Sb6#
      • 2.c4#
    • 1...Rf4
      • 2.Sb6#
    • 1...Rf5
      • 2.Sb6#
      • 2.c4#
    • 1...Rf7
      • 2.Sb6#
      • 2.c4#
    • 1...Rf8
      • 2.Sb6#
      • 2.c4#
    • 1...Bf3
      • 2.Qf7#
    • 1...Ba7
      • 2.Qxd6#
    • 1...dxe5
      • 2.Qc6#
  • Keys
    • 1.Sf3!
      • threat
        • 2.Qf7#
      • 1...Kc4
        • 2.Qe4#
      • 1...Rxe2
        • 2.Sb6#
      • 1...Rxf3
        • 2.Sb6#
      • 1...dxe5
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(d);::S(E)
    • B(c);S_CUTR(d)::QAB(I)
    • B(i);N_GUARD::QAR1(I),XP(g)
    • P(g);OGATE,XP(G)::QAB1(I)
  • Actual
    • S(B);
    • Threat
      • QAB(I)
    • Vars
      • K(f);S_FLIGHT::QAR2(I)
      • R(d);XR(C)::S(E)
      • R(d);XS(B)::S(E)
      • P(g);OGATE,XP(G)::QAB1(I)
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