MESON Chess Problem Database

Problem Display
PID: 23678 (8/8/8/2K5/kpn5/1r6/2B5/7Q w - - 0 1)

Dehler, Ernst Georg

Chemnitzer Tageblatt, 1927

8/8/8/2K5/kpn5/1r6/2B5/7Q

#2

3 + 4

2786 More Fun with Chess Miniatures 2000
15148 Sadier Collection 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Ka3
      • 2.Qa1#
    • 1...Ka5
      • 2.Qa8#
    • 1...Sb2
      • 2.Qa8#
      • 2.Qa1#
    • 1...Sd2
      • 2.Qa8#
      • 2.Qa1#
    • 1...Sa3
      • 2.Qa8#
    • 1...Se3
      • 2.Qa8#
      • 2.Qa1#
    • 1...Sa5
      • 2.Qa1#
    • 1...Se5
      • 2.Qa8#
      • 2.Qa1#
    • 1...Sb6
      • 2.Qa1#
    • 1...Sd6
      • 2.Qa8#
      • 2.Qa1#
  • Tries
    • 1.Kxc4?
      • threat
        • 2.Qa8#
        • 2.Qa1#
      • 1...Ka3
        • 2.Qa1#
      • 1...Ka5!
    • 1.Qe4?
      • 1...Ka5
        • 2.Qa8#
      • 1...Sa5
        • 2.Qxb4#
      • 1...Sb2
        • 2.Qa8#
        • 2.Qxb4#
      • 1...Sd2
        • 2.Qa8#
        • 2.Qxb4#
      • 1...Sa3
        • 2.Qa8#
        • 2.Qxb4#
      • 1...Se3
        • 2.Qa8#
        • 2.Qxb4#
      • 1...Se5
        • 2.Qa8#
        • 2.Qxb4#
      • 1...Sb6
        • 2.Qxb4#
      • 1...Sd6
        • 2.Qa8#
        • 2.Qxb4#
      • 1...Ka3!
    • 1.Qc6+?
      • 1...Ka5
        • 2.Qb5#
        • 2.Qa8#
      • 1...Ka3!
    • 1.Qb7?
      • threat
        • 2.Qxb4#
      • 1...Ka5
        • 2.Qa8#
        • 2.Qb5#
        • 2.Qa7#
      • 1...Sb6
        • 2.Qa6#
        • 2.Qa7#
      • 1...Ka3!
    • 1.Qe1?
      • threat
        • 2.Qxb4#
      • 1...Ka3
        • 2.Qa1#
      • 1...Sd2
        • 2.Qa1#
      • 1...Ka5!
    • 1.Qf1?
      • 1...Ka3
        • 2.Qa1#
      • 1...Sa5
        • 2.Qa1#
      • 1...Sb2
        • 2.Qa6#
        • 2.Qa1#
      • 1...Sd2
        • 2.Qa6#
        • 2.Qa1#
      • 1...Sa3
        • 2.Qa6#
      • 1...Se3
        • 2.Qa6#
        • 2.Qa1#
      • 1...Se5
        • 2.Qa6#
        • 2.Qa1#
      • 1...Sb6
        • 2.Qa6#
        • 2.Qa1#
      • 1...Sd6
        • 2.Qa6#
        • 2.Qa1#
      • 1...Ka5!
  • Keys
    • 1.Qh8!
      • 1...Ka3
        • 2.Qa1#
      • 1...Ka5
        • 2.Qa8#
      • 1...Sa5
        • 2.Qa1#
      • 1...Sb2
        • 2.Qa8#
      • 1...Sd2
        • 2.Qa1#
        • 2.Qa8#
      • 1...Sa3
        • 2.Qa8#
      • 1...Se3
        • 2.Qa1#
        • 2.Qa8#
      • 1...Se5
        • 2.Qa8#
      • 1...Sb6
        • 2.Qa1#
      • 1...Sd6
        • 2.Qa1#
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(b);N_SPINR(a),P-FLIGHT::QAR2(A)
    • K(b);N_SPINR(a),P-FLIGHT::QAR(A)
    • S(d);N_GUARD,SBLOCK::QAR(A)
    • S(d);N_GUARD::QAR(A)
  • Tries
    • Try
      • K(C);P-FLIGHT,XS(d)
      • Threat
        • DUALS(2)
      • Vars
        • K(b);N_SPINR(a),P-FLIGHT::QAR2(A)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • Q(A);
      • Vars
        • K(b);N_SPINR(a),P-FLIGHT::QAR(A)
        • S(d);OGATE,P_SPINP(c)::QAR1(A),XP(c)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • Q(A);CHECK
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(c)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
    • Try
      • Q(A);
      • Threat
        • QAR1(A),XP(c)
      • Vars
        • K(b);N_SPINR(a),P-FLIGHT::QAR2(A)
        • S(d);N_GUARD::QAR(A)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT,P_SPINP(c)
    • Try
      • Q(A);
      • Vars
        • K(b);N_SPINR(a),P-FLIGHT::QAR2(A)
        • S(d);N_GUARD,SBLOCK::QAR(A)
        • S(d);OGATE,SBLOCK::QAR2(A)
      • Refutation
        • K(b);N_SPINR(a),P-FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);N_SPINR(a),P-FLIGHT::QAR2(A)
      • K(b);N_SPINR(a),P-FLIGHT::QAR(A)
      • S(d);N_GUARD,SBLOCK::QAR(A)
      • S(d);N_GUARD::QAR(A)
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