MESON Chess Problem Database

Problem Display
PID: 207902 (5KB1/4Q3/p1p2R2/2B1n3/Rn2k2p/b6r/r7/3NN3 w - - 0 1)

Tuhan-Baranowski, Leon

Il Problema, 1933

5KB1/4Q3/p1p2R2/2B1n3/Rn2k2p/b6r/r7/3NN3

#2

8 + 9

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Sf2#
    • 1...Rf2
      • 2.Sxf2#
    • 1...Rh1
      • 2.Sc3#
    • 1...Rh2
      • 2.Sc3#
    • 1...Rc3
      • 2.Sxc3#
    • 1...Bc1
      • 2.Rxb4#
    • 1...Bb2
      • 2.Sf2#
  • Tries
    • 1.Bd6?
      • threat
        • 2.Qxe5#
      • 1...Kd4
        • 2.Rf4#
        • 2.Qxe5#
      • 1...Bb2!
    • 1.Qe6?
      • threat
        • 2.Bh7#
        • 2.Qf5#
      • 1...Rf2
        • 2.Sxf2#
      • 1...Rg2
        • 2.Qf5#
      • 1...Rg3
        • 2.Qf5#
      • 1...Rf3!
  • Keys
    • 1.Bd4!
      • threat
        • 2.Qxe5#
      • 1...Kxd4
        • 2.Rf4#
      • 1...Sc2
        • 2.Sf2#
      • 1...Sd3
        • 2.Sc3#
      • 1...Sd5
        • 2.Bh7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • R(a);N_GUARD::S(A)
    • R(a);N_GUARD,P_PINR(E)::S(A),XR(a)
    • R(c);N_GUARD::S(A)
    • R(c);N_GUARD::S(A),XR(c)
    • B(b);N_GUARD::R(C),XS(d)
    • B(b);S_CUTR(a)::S(A)
  • Tries
    • Try
      • B(D);
      • Threat
        • QAR1(F),XS(g)
      • Refutation
        • B(b);
    • Try
      • Q(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(a);N_GUARD,P_PINR(E)::S(A),XR(a)
        • R(a);::QAB1(F)
        • R(c);::QAB1(F)
      • Refutation
        • R(c);P_PINR(E)
  • Actual
    • B(D);N_PINS(d),P_PINS(g)
    • Threat
      • QAR1(F),XS(g)
    • Vars
      • K(e);N_SPINS(g),P-FLIGHT,P_SPINS(d),XB(D)::R(E)
      • S(d);P_PINQ(F),S_CUTR(a)::S(A)
      • S(d);P_PINQ(F),S_CUTR(c)::S(A)
      • S(d);P_PINQ(F),SBLOCK::B(H)
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