MESON Chess Problem Database

Problem Display
PID: 107848 (7K/2B2p1b/1P3r2/k1N5/2P5/q7/NP6/3Q1n2 w - - 0 1)

Burmeister, Albert M

Tagliche Rundschau, 1905

7K/2B2p1b/1P3r2/k1N5/2P5/q7/NP6/3Q1n2

#2

8 + 6

15 British Chess Magazine 1910
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb2
      • 2.Qa4#
    • 1...Qc3
      • 2.Qa4#
    • 1...Qd3
      • 2.Qa4#
      • 2.b4#
    • 1...Qe3
      • 2.Qa4#
      • 2.b4#
    • 1...Qf3
      • 2.Qa4#
      • 2.b4#
    • 1...Qg3
      • 2.Qa4#
      • 2.b4#
    • 1...Qh3
      • 2.Qa4#
      • 2.b4#
    • 1...Qa4
      • 2.Qxa4#
    • 1...Rf2
      • 2.b7#
    • 1...Rf3
      • 2.b7#
    • 1...Rf4
      • 2.b7#
    • 1...Rf5
      • 2.b7#
  • Tries
    • 1.Qe1+?
      • 1...Qb4
        • 2.Qxb4#
      • 1...Qc3
        • 2.Qxc3#
      • 1...Sd2!
    • 1.Qd2+?
      • 1...Qb4
        • 2.Qxb4#
      • 1...Qc3
        • 2.Qxc3#
      • 1...Sxd2!
  • Keys
    • 1.Qf3!
      • threat
        • 2.Qa8#
        • 2.Qxa3#
      • 1...Qxb2
        • 2.Qa8#
      • 1...Qxc5
        • 2.Qa8#
      • 1...Qxa2
        • 2.Qc3#
      • 1...Qxf3
        • 2.b4#
      • 1...Rxf3
        • 2.b7#
      • 1...Qb4
        • 2.Qa8#
      • 1...Qb3
        • 2.Qa8#
      • 1...Qc3
        • 2.Qa8#
        • 2.Qxc3#
      • 1...Qd3
        • 2.Qa8#
        • 2.b4#
      • 1...Qe3
        • 2.Qa8#
        • 2.b4#
      • 1...Qa4
        • 2.Qa8#
      • 1...Rc6
        • 2.Qxa3#
      • 1...Bc2
        • 2.Qa8#
      • 1...Bd3
        • 2.Qa8#
      • 1...Be4
        • 2.Qxa3#
      • 1...Se3
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 10
    • REMOVED MATES = 4
  • Sets
    • Q(b);N_GUARD,XP(C)::QAR1(A)
    • Q(b);N_GUARD::QAR1(A)
    • Q(b);N_GUARD::QAR1(A),XQ(b)
    • R(d);N_GUARD::B(G)+P(F)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • Q(b);N_GUARD,P_SPINQ(b)::QAB1(A),XQ(b)
        • Q(b);N_GUARD,P_SPINQ(b)::QAB(A),XQ(b)
      • Refutation
        • S(a);P_SPINS(a)
    • Try
      • Q(A);CHECK
      • Vars
        • Q(b);N_GUARD,P_SPINQ(b)::QAB1(A),XQ(b)
        • Q(b);N_GUARD,P_SPINQ(b)::QAB(A),XQ(b)
      • Refutation
        • S(a);XQ(A)
  • Actual
    • Q(A);
    • Threat
      • DUALS(2)
    • Vars
      • Q(b);XP(C)::QAR(A)
      • Q(b);XS(E)::QAR(A)
      • Q(b);N_GUARD,XS(B)::QAB(A)
      • Q(b);N_GUARD,XQ(A)::P(C)
      • R(d);N_GUARD,XQ(A)::B(G)+P(F)
      • Q(b);::QAR(A)
      • R(d);::QAR2(A),XQ(b)
      • B(f);::QAR(A)
      • B(f);::QAR2(A),XQ(b)
      • S(a);::QAR(A)
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