MESON Chess Problem Database

Problem Display
PID: 35196 (Q7/1pK1p3/2Ppr3/2NpN3/1R6/B6b/2P5/k4q1R w - - 0 1)

Seider, Shlomo

7th HM., Probleemblad, 1969

Q7/1pK1p3/2Ppr3/2NpN3/1R6/B6b/2P5/k4q1R

#2

9 + 8

3841 The Art of Israeli Chess Composition 1983
3674 As in all Arts 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Qb1
      • 2.Bb2#
    • 1...Qc1
      • 2.Bxc1#
    • 1...Qd1
      • 2.Bc1#
    • 1...Qe1
      • 2.Bc1#
    • 1...Qg1
      • 2.Bc1#
    • 1...Qxh1
      • 2.Bc1#
    • 1...b5
      • 2.Bc1#
  • Tries
    • 1.Scd3?
      • threat
        • 2.Bc1#
      • 1...Ka2
        • 2.Bc1#
      • 1...Qb1
        • 2.Bb2#
      • 1...Qc1
        • 2.Bxc1#
      • 1...Qg1!
    • 1.Sc4?
      • threat
        • 2.Bc1#
      • 1...Ka2
        • 2.Bc1#
      • 1...Qb1
        • 2.Bb2#
      • 1...Qc1
        • 2.Bxc1#
      • 1...Re3!
    • 1.Rxf1+?
      • 1...Ka2
        • 2.Bc1#
        • 2.Bb2#
        • 2.Rb2#
      • 1...Bxf1!
    • 1.Rb5?
      • threat
        • 2.Bc1#
      • 1...Ka2
        • 2.Bc1#
      • 1...Qb1
        • 2.Bb2#
      • 1...Qc1
        • 2.Bxc1#
      • 1...Qe1!
    • 1.Qa4?
      • threat
        • 2.Bc1#
      • 1...Ka2
        • 2.Bc1#
      • 1...Qb1
        • 2.Bb2#
      • 1...Qc1
        • 2.Bxc1#
      • 1...b5!
    • 1.Qa5?
      • threat
        • 2.Bc1#
      • 1...Ka2
        • 2.Bc1#
      • 1...Qb1
        • 2.Bb2#
      • 1...Qc1
        • 2.Bxc1#
      • 1...b6!
    • 1.c4?
      • threat
        • 2.Bc1#
      • 1...Ka2
        • 2.Bc1#
      • 1...Qb1
        • 2.Bb2#
      • 1...Qc1
        • 2.Bxc1#
      • 1...Qd1!
  • Keys
    • 1.Sed3!
      • threat
        • 2.Bc1#
      • 1...Ka2
        • 2.Bc1#
      • 1...Qb1
        • 2.Bb2#
      • 1...Qc1
        • 2.Bxc1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 5
  • Sets
    • Q(b);::QAR(I)+B(C),DCHECK
    • Q(b);N_GUARD::QAR(I)+B(C),XQ(b)
    • Q(b);N_GUARD::QAR(I)+B(C)
    • Q(b);N_GUARD,N_SPINQ(b),SBLOCK,XR(A)::QAR(I)+B(C)
    • P(g);::QAR(I)+B(C)
  • Tries
    • Try
      • S(E);
      • Threat
        • QAR(I)+B(C)
      • Vars
        • K(a);N_SPINQ(b),P-FLIGHT::QAR(I)+B(C)
        • Q(b);::QAR(I)+B(C),DCHECK
        • Q(b);::QAR(I)+B(C),XQ(b)
      • Refutation
        • Q(b);
    • Try
      • S(F);
      • Threat
        • QAR(I)+B(C)
      • Vars
        • K(a);N_SPINQ(b),P-FLIGHT::QAR(I)+B(C)
        • Q(b);::QAR(I)+B(C),DCHECK
        • Q(b);::QAR(I)+B(C),XQ(b)
      • Refutation
        • R(f);
    • Try
      • R(A);CHECK,XQ(b)
      • Refutation
        • B(c);XR(A)
    • Try
      • R(D);
      • Threat
        • QAR(I)+B(C)
      • Vars
        • K(a);N_SPINQ(b),P-FLIGHT::QAR(I)+B(C)
        • Q(b);::QAR(I)+B(C),DCHECK
        • Q(b);::QAR(I)+B(C),XQ(b)
      • Refutation
        • Q(b);
    • Try
      • Q(I);
      • Threat
        • QAR(I)+B(C)
      • Vars
        • K(a);N_SPINQ(b),P-FLIGHT::QAR(I)+B(C)
        • Q(b);::QAR(I)+B(C),DCHECK
        • Q(b);::QAR(I)+B(C),XQ(b)
      • Refutation
        • P(g);
    • Try
      • Q(I);
      • Threat
        • QAR(I)+B(C)
      • Vars
        • K(a);N_SPINQ(b),P-FLIGHT::QAR(I)+B(C)
        • Q(b);::QAR(I)+B(C),DCHECK
        • Q(b);::QAR(I)+B(C),XQ(b)
      • Refutation
        • P(g);
    • Try
      • P(B);
      • Threat
        • QAR(I)+B(C)
      • Vars
        • K(a);N_SPINQ(b),P-FLIGHT::QAR(I)+B(C)
        • Q(b);::QAR(I)+B(C),DCHECK
        • Q(b);::QAR(I)+B(C),XQ(b)
      • Refutation
        • Q(b);
  • Actual
    • S(F);
    • Threat
      • QAR(I)+B(C)
    • Vars
      • K(a);N_SPINQ(b),P-FLIGHT::QAR(I)+B(C)
      • Q(b);::QAR(I)+B(C),DCHECK
      • Q(b);::QAR(I)+B(C),XQ(b)
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