MESON Chess Problem Database

Problem Display
PID: 63897 (3R4/K1Q1pr2/1Np1k1B1/4Pp2/2P1n2N/b2P1P2/8/1b5q w - - 0 1)

Paslack, Rainer

StrateGems, 2005

3R4/K1Q1pr2/1Np1k1B1/4Pp2/2P1n2N/b2P1P2/8/1b5q

#2

10 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Sf6
      • 2.Bxf5#
  • Tries
    • 1.Qxc6+?
      • 1...Bd6
        • 2.Qd5#
      • 1...Sd6
        • 2.Qd5#
      • 1...Kxe5!
    • 1.d4?
      • threat
        • 2.Qd7#
        • 2.Qc8#
      • 1...Sc5
        • 2.Qxc6#
      • 1...Sd6
        • 2.Qd7#
      • 1...Sf6!
    • 1.f4?
      • threat
        • 2.Qd7#
        • 2.Qc8#
      • 1...Sd6
        • 2.Qd7#
      • 1...Sf6
        • 2.Bxf5#
      • 1...Sc5!
  • Keys
    • 1.Rd5!
      • threat
        • 2.Qd7#
        • 2.Qc8#
      • 1...cxd5
        • 2.cxd5#
      • 1...Rf8
        • 2.Qd7#
      • 1...Sc5
        • 2.Qxc6#
      • 1...Sd6
        • 2.Qd7#
      • 1...Sf6
        • 2.Bxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(d);S_CUTR(i)::B(G),XP(e)
  • Tries
    • Try
      • Q(I);CHECK,XP(f)
      • Vars
        • B(c);P_SPINB(c)::QAB1(I)
        • S(d);P_SPINS(d)::QAB1(I)
      • Refutation
        • K(g);P-FLIGHT,XP(E)
    • Try
      • P(A);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);N_GUARD,S_CUTB(c)::QAR2(I),XP(f)
        • S(d);::QAB1(I)
      • Refutation
        • S(d);
    • Try
      • P(B);
      • Threat
        • DUALS(2)
      • Vars
        • S(d);::QAB1(I)
        • S(d);S_CUTR(i)::B(G),XP(e)
      • Refutation
        • S(d);
  • Actual
    • R(J);
    • Threat
      • DUALS(2)
    • Vars
      • P(f);OGATE,XR(J)::P(C),XP(f)
      • R(i);::QAB1(I)
      • S(d);N_GUARD,S_CUTB(c)::QAR2(I),XP(f)
      • S(d);::QAB1(I)
      • S(d);S_CUTR(i)::B(G),XP(e)
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