MESON Chess Problem Database

Problem Display
PID: 47585 (Bq1n4/1r1rp2N/7Q/7R/2P1k1P1/1NRpPpn1/7B/1K6 w - - 0 1)

Papack, Daniel

1st Prize, Sachsische Zeitung, 1993

Bq1n4/1r1rp2N/7Q/7R/2P1k1P1/1NRpPpn1/7B/1K6

#2

11 + 9

6113 Problemschach-Jahrbuch (1993) 1994
3681 FIDE Album (1992-1994) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Qf4
      • 2.Qxf4#
    • 1...Qa7
      • 2.Qf4#
    • 1...Qxa8
      • 2.Qf4#
    • 1...Qc8
      • 2.Qf4#
    • 1...Rd6
      • 2.Qf4#
    • 1...Rc7
      • 2.Qf4#
    • 1...e5
      • 2.Sf6#
    • 1...e6
      • 2.Sf6#
  • Tries
    • 1.Sg5+?
      • 1...Ke5
        • 2.Bxg3#
      • 1...Kxe3!
    • 1.Bxb7+?
      • 1...Qxb7
        • 2.Qf4#
      • 1...Rd5
        • 2.Sd2#
        • 2.Sc5#
        • 2.Bxd5#
      • 1...Sc6
        • 2.Sd2#
        • 2.Sc5#
      • 1...Sxb7
        • 2.Sd2#
      • 1...Rxb7!
    • 1.Rb5?
      • threat
        • 2.Sd2#
      • 1...Qf4
        • 2.Qxf4#
      • 1...Sf1
        • 2.Sc5#
      • 1...d2
        • 2.Sg5#
      • 1...Rd5!
    • 1.Qe6+?
      • 1...Qe5
        • 2.Rxe5#
        • 2.Qxe5#
      • 1...Sxe6!
  • Keys
    • 1.Qb6!
      • threat
        • 2.Sd2#
      • 1...Rd4
        • 2.Qxd4#
      • 1...Sf1
        • 2.Sg5#
      • 1...d2
        • 2.Sc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 8
  • Sets
    • Q(h);N_GUARD::QAR1(I),XQ(h)
    • Q(h);N_GUARD::QAR1(I)
    • Q(h);N_GUARD,N_SPINR(e),XB(K)::QAR1(I)
    • R(f);S_CUTQ(h)::QAR1(I)
    • P(g);N_GUARD::S(J)
  • Tries
    • Try
      • S(J);CHECK
      • Vars
        • K(d);N_SPINR(e),P-FLIGHT,P_SPINS(c)::B(B),XS(c)
      • Refutation
        • K(d);N_SPINR(e),P-FLIGHT,P_SPINP(a),XP(E)
    • Try
      • B(K);CHECK,N_SPINS(C),XR(e)
      • Vars
        • Q(h);P_PINS(C),XB(K)::QAR1(I)
        • S(i);XB(K)::S(C)
      • Refutation
        • R(f);P_PINS(C),XB(K)
    • Try
      • R(H);N_SPINS(C)
      • Threat
        • S(C)
      • Vars
        • Q(h);N_GUARD::QAR1(I),XQ(h)
        • S(c);::S(C)
        • P(a);::S(J)
      • Refutation
        • R(f);N_SPINR(e)
    • Try
      • Q(I);CHECK
      • Refutation
        • S(i);XQ(I)
  • Actual
    • Q(I);N_SPINS(C)
    • Threat
      • S(C)
    • Vars
      • R(f);N_GUARD::QAR1(I),XR(f)
      • S(c);::S(J)
      • P(a);::S(C)
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