MESON Chess Problem Database

Problem Display
PID: 274020 (b7/2Np2q1/B4p2/5Q2/1p1kp1P1/p3N2R/1P3PR1/n1B4K w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2023

b7/2Np2q1/B4p2/5Q2/1p1kp1P1/p3N2R/1P3PR1/n1B4K

#2

11 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.Qxd5#
    • 1...Sc2
      • 2.Sxc2#
    • 1...Sb3
      • 2.Sc2#
    • 1...axb2
      • 2.Bxb2#
    • 1...d5
      • 2.Se6#
    • 1...d6
      • 2.Se6#
  • Tries
    • 1.Bf1?
      • threat
        • 2.Sb5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...d5
        • 2.Se6#
      • 1...Bc6!
    • 1.Be2?
      • threat
        • 2.Sb5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...d5
        • 2.Se6#
      • 1...Bc6!
    • 1.Bc4?
      • threat
        • 2.Sb5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...d5
        • 2.Se6#
      • 1...Bc6!
    • 1.Rg1?
      • threat
        • 2.Rd1#
      • 1...axb2
        • 2.Bxb2#
      • 1...Bd5
        • 2.Qxd5#
      • 1...d5
        • 2.Se6#
      • 1...Sb3
        • 2.Sc2#
      • 1...Qxg4!
  • Keys
    • 1.f4!
      • threat
        • 2.Rd2#
      • 1...axb2
        • 2.Bxb2#
      • 1...exf4 ep
        • 2.Sb5#
      • 1...Bd5
        • 2.Qxd5#
      • 1...d5
        • 2.Se6#
      • 1...Sb3
        • 2.Sc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • B(i);N_GUARD::QAR1(I),XB(i)
    • S(a);N_GUARD::S(F),XS(a)
    • S(a);N_GUARD::S(F)
    • P(b);OGATE,XP(C)::B(A),XP(b)
    • P(g);N_GUARD::S(K)
  • Tries
    • Try
      • B(J);
      • Threat
        • S(K)
      • Vars
        • B(i);N_GUARD::QAR1(I),XB(i)
        • P(g);N_GUARD::S(K)
      • Refutation
        • B(i);
    • Try
      • B(J);
      • Threat
        • S(K)
      • Vars
        • B(i);N_GUARD::QAR1(I),XB(i)
        • P(g);N_GUARD::S(K)
      • Refutation
        • B(i);
    • Try
      • B(J);
      • Threat
        • S(K)
      • Vars
        • B(i);N_GUARD::QAR1(I),XB(i)
        • P(g);N_GUARD::S(K)
      • Refutation
        • B(i);
    • Try
      • R(E);
      • Threat
        • R(E)
      • Vars
        • P(b);OGATE,XP(C)::B(A),XP(b)
        • B(i);N_GUARD::QAR1(I),XB(i)
        • P(g);N_GUARD::S(K)
        • S(a);N_GUARD::S(F)
      • Refutation
        • Q(h);XP(H)
  • Actual
    • P(D);
    • Threat
      • R(E)
    • Vars
      • P(b);OGATE,XP(C)::B(A),XP(b)
      • P(e);EP,XP(D)::S(K)
      • B(i);N_GUARD::QAR1(I),XB(i)
      • P(g);N_GUARD::S(K)
      • S(a);N_GUARD::S(F)
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