MESON Chess Problem Database

Problem Display
PID: 238280 (2B2N2/1p1N4/1P1P2r1/R1K1nk2/1R4pP/2BPP3/1pQ3P1/1q1b1r2 w - - 0 1)

Segers, Marcel

Skakbladet, 1933

2B2N2/1p1N4/1P1P2r1/R1K1nk2/1R4pP/2BPP3/1pQ3P1/1q1b1r2

#2

14 + 9

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Re1
      • 2.Rf4#
    • 1...Rg1
      • 2.Rf4#
    • 1...Rh1
      • 2.Rf4#
    • 1...Rf4
      • 2.Rxf4#
    • 1...Bf3
      • 2.Rf4#
    • 1...Sxd3+
      • 2.Kd4#
    • 1...Sf3
      • 2.Sf6#
      • 2.Rf4#
    • 1...Sc4
      • 2.Kxc4#
      • 2.Sf6#
    • 1...Sc6
      • 2.Sf6#
    • 1...Sxd7+
      • 2.Kc4#
    • 1...Sf7
      • 2.Sf6#
  • Tries
    • 1.Sf6+?
      • 1...Sd7+
        • 2.Kc4#
        • 2.Bxd7#
      • 1...Kxf6!
    • 1.Qf2+?
      • 1...Bf3
        • 2.Rf4#
      • 1...Sf3
        • 2.Kc4#
        • 2.Sf6#
        • 2.Rf4#
      • 1...Rxf2!
  • Keys
    • 1.g3!
      • threat
        • 2.e4#
      • 1...Sxd3+
        • 2.Kd4#
      • 1...Sxd7+
        • 2.Kc4#
      • 1...Re1
        • 2.Rf4#
      • 1...Rf4
        • 2.Rxf4#
      • 1...Bf3
        • 2.Rf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 4
  • Sets
    • R(c);N_GUARD::R1(F)
    • R(c);N_GUARD::R1(F),XR(c)
    • B(b);S_CUTR(c)::R1(F)
    • S(f);CHECK,P_SPINS(f),XP(D)::R(H)+K(I)
    • S(f);N_GUARD::B(M)+S(L)
    • S(f);CHECK,P_SPINS(f),XS(L)::R(H)+K(I)
  • Tries
    • Try
      • S(L);CHECK
      • Refutation
        • K(g);P-FLIGHT,P_SPINS(f),XS(L)
    • Try
      • Q(A);CHECK
      • Vars
        • B(b);P_SPINB(b)::R1(F)
      • Refutation
        • R(c);XQ(A)
  • Actual
    • P(B);
    • Threat
      • P(E)
    • Vars
      • S(f);CHECK,P_SPINS(f),XP(D)::R(H)+K(I)
      • S(f);CHECK,P_SPINS(f),XS(L)::R(H)+K(I)
      • R(c);N_GUARD::R1(F)
      • R(c);N_GUARD::R1(F),XR(c)
      • B(b);S_CUTR(c)::R1(F)
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