MESON Chess Problem Database

Problem Display
PID: 274021 (1b1R1N2/1K3p2/1p2P3/2kp3q/R2N1p2/1P6/b1p1P2Q/4nBB1 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2023

1b1R1N2/1K3p2/1p2P3/2kp3q/R2N1p2/1P6/b1p1P2Q/4nBB1

#2

11 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Bd6
      • 2.Sd7#
    • 1...f3
      • 2.Sd7#
    • 1...fxe6
      • 2.Sfxe6#
  • Tries
    • 1.Sxc2+?
      • 1...Kb5
        • 2.Sa3#
      • 1...d4!
    • 1.Sf5+?
      • 1...Kb5
        • 2.Rxd5#
      • 1...d4!
    • 1.Sc6+?
      • 1...Kb5
        • 2.Rb4#
      • 1...d4!
    • 1.Rd6?
      • threat
        • 2.Rc6#
      • 1...Bxd6
        • 2.Sd7#
      • 1...Kxd6!
    • 1.e3?
      • threat
        • 2.b4#
      • 1...Bxb3
        • 2.Sxb3#
      • 1...fxe3
        • 2.Sd7#
      • 1...Sd3
        • 2.Qxc2#
      • 1...Qe2!
  • Keys
    • 1.e4!
      • threat
        • 2.b4#
      • 1...Bxb3
        • 2.Sxb3#
      • 1...fxe4 ep
        • 2.Sd7#
      • 1...Qe2
        • 2.Rxd5#
      • 1...Sd3
        • 2.Qxc2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 3
  • Sets
    • B(j);SBLOCK::S(K)
    • P(d);::S(K)
    • P(i);XP(H)::S(K),XP(i)
  • Tries
    • Try
      • S(G);CHECK,XP(c)
      • Vars
        • K(e);P-FLIGHT,S_CUTP(f)::S(G)
      • Refutation
        • P(f);P_SPINP(f)
    • Try
      • S(G);CHECK
      • Vars
        • K(e);N_GUARD,P-FLIGHT::R(J),XP(f)
      • Refutation
        • P(f);P_SPINP(f)
    • Try
      • S(G);CHECK
      • Vars
        • K(e);P-FLIGHT,S_CUTP(f)::R1(F)
      • Refutation
        • P(f);P_SPINP(f)
    • Try
      • R(J);
      • Threat
        • R1(J)
      • Vars
        • B(j);SBLOCK,XR(J)::S(K)
      • Refutation
        • K(e);P_SPINP(d),S_FLIGHT,XR(J)
    • Try
      • P(C);
      • Threat
        • P(E)
      • Vars
        • B(b);XP(E)::S(G),XB(b)
        • P(d);XP(C)::S(K)
        • S(a);N_GUARD::QAR(D),XP(c)
      • Refutation
        • Q(g);
  • Actual
    • P(C);
    • Threat
      • P(E)
    • Vars
      • B(b);XP(E)::B(B)+S(G),DCHECK,XB(b)
      • P(d);EP,XP(C)::S(K)
      • Q(g);N_GUARD::R1(J),XP(f)
      • S(a);N_GUARD::QAR(D),XP(c)
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