MESON Chess Problem Database

Problem Display
PID: 258811 (B2KQ3/PN3p2/r1NP3n/PR2Pn2/1P2k3/5R2/4P3/B7 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2022

B2KQ3/PN3p2/r1NP3n/PR2Pn2/1P2k3/5R2/4P3/B7

#2

14 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc6
      • 2.Qxc6#
    • 1...Sxd6
      • 2.Sxd6#
      • 2.exd6#
  • Tries
    • 1.Sd4?
      • threat
        • 2.Sc5#
      • 1...Rxd6+
        • 2.Sxd6#
      • 1...Rc6
        • 2.Qxc6#
      • 1...Se7!
    • 1.Se7?
      • threat
        • 2.Sc5#
      • 1...Rxd6+
        • 2.Sxd6#
      • 1...Sd4!
    • 1.Qxf7?
      • threat
        • 2.Sc5#
        • 2.Qd5#
      • 1...Se3
        • 2.Sc5#
        • 2.Rf4#
        • 2.Qf4#
      • 1...Se7
        • 2.Sc5#
        • 2.Qc4#
        • 2.Qf4#
      • 1...Sxf7+!
    • 1.Qe6?
      • threat
        • 2.Sc5#
        • 2.Qd5#
      • 1...Se3
        • 2.Sc5#
      • 1...Se7
        • 2.Sc5#
        • 2.Qc4#
      • 1...fxe6!
  • Keys
    • 1.Sb8!
      • threat
        • 2.Sc5#
      • 1...Rxd6+
        • 2.Sxd6#
      • 1...Rc6
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE,XS(H)::QAB(N),XR(c)
  • Tries
    • Try
      • S(H);
      • Threat
        • B(L)+S(K),DCHECK
      • Vars
        • R(c);CHECK,XP(I)::B(L)+S(K),DCHECK,XR(c)
        • R(c);N_GUARD::QAB(N),XR(c)
      • Refutation
        • S(b);
    • Try
      • S(H);
      • Threat
        • B(L)+S(K),DCHECK
      • Vars
        • R(c);CHECK,XP(I)::B(L)+S(K),DCHECK,XR(c)
      • Refutation
        • S(b);
    • Try
      • Q(N);XP(e)
      • Threat
        • DUALS(2)
      • Refutation
        • S(d);CHECK,XQ(N)
    • Try
      • Q(N);
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::S(K)
      • Refutation
        • P(e);XQ(N)
  • Actual
    • S(H);
    • Threat
      • B(L)+S(K),DCHECK
    • Vars
      • R(c);CHECK,XP(I)::B(L)+S(K),DCHECK,XR(c)
      • R(c);N_GUARD::QAB(N),XR(c)
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