MESON Chess Problem Database

Problem Display
PID: 216245 (6b1/K2N1p2/3p4/1B1k1P2/3pp3/8/N1n5/7Q w - - 0 1)

Peipers, Fritz

Canadian Illustrated News, 1882

6b1/K2N1p2/3p4/1B1k1P2/3pp3/8/N1n5/7Q

#2

6 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sa1
      • 2.Sb4#
    • 1...Se1
      • 2.Sb4#
    • 1...Sa3
      • 2.Sb4#
    • 1...Se3
      • 2.Sb4#
    • 1...Sb4
      • 2.Sxb4#
  • Tries
    • 1.Qb1?
      • threat
        • 2.Qb3#
      • 1...e3
        • 2.Qh1#
      • 1...Sa1
        • 2.Sb4#
      • 1...Sa3
        • 2.Sb4#
      • 1...Se3
        • 2.Sb4#
      • 1...d3!
    • 1.Qf1?
      • threat
        • 2.Qc4#
      • 1...e3
        • 2.Qg2#
        • 2.Qh1#
        • 2.Qf3#
      • 1...Sa3
        • 2.Sb4#
      • 1...Se3
        • 2.Sb4#
      • 1...d3!
    • 1.Qg1?
      • 1...e3
        • 2.Qh1#
        • 2.Qg2#
      • 1...Sa1
        • 2.Sb4#
      • 1...Se1
        • 2.Sb4#
      • 1...Sa3
        • 2.Sb4#
      • 1...Se3
        • 2.Sb4#
      • 1...Sb4
        • 2.Sxb4#
      • 1...d3
        • 2.Sc3#
      • 1...f6
        • 2.Qxg8#
      • 1...Bh7!
    • 1.Qh3?
      • threat
        • 2.Qb3#
      • 1...e3
        • 2.Qg2#
        • 2.Qh1#
        • 2.Qf3#
      • 1...Sa1
        • 2.Sb4#
      • 1...Sa3
        • 2.Sb4#
      • 1...Se3
        • 2.Sb4#
      • 1...d3!
  • Keys
    • 1.Qh8!
      • 1...e3
        • 2.Qh1#
      • 1...Bh7
        • 2.Qa8#
      • 1...Sa1
        • 2.Sb4#
      • 1...Se1
        • 2.Sb4#
      • 1...Sa3
        • 2.Sb4#
      • 1...Se3
        • 2.Sb4#
      • 1...Sb4
        • 2.Sxb4#
      • 1...d3
        • 2.Sc3#
      • 1...f6
        • 2.Qxg8#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD::S(B)
    • S(a);N_GUARD::S(B),XS(a)
  • Tries
    • Try
      • Q(A);N_PINP(c)
      • Threat
        • QAB(A)
      • Vars
        • P(c);OGATEB::QAB(A)
        • S(a);N_GUARD::S(B)
      • Refutation
        • P(b);
    • Try
      • Q(A);N_PINP(c)
      • Threat
        • QAB1(A)
      • Vars
        • S(a);N_GUARD::S(B)
      • Refutation
        • P(b);
    • Try
      • Q(A);N_PINP(c)
      • Vars
        • S(a);N_GUARD::S(B)
        • S(a);N_GUARD::S(B),XS(a)
        • P(b);N_GUARD::S(B)
        • P(f);OGATEB::QAB(A),XB(g)
      • Refutation
        • B(g);
    • Try
      • Q(A);N_PINP(c)
      • Threat
        • QAB(A)
      • Vars
        • S(a);N_GUARD::S(B)
      • Refutation
        • P(b);
  • Actual
    • Q(A);N_PINP(c)
    • Vars
      • P(c);OGATEB::QAB(A)
      • B(g);OGATE::QAB(A)
      • S(a);N_GUARD::S(B)
      • S(a);N_GUARD::S(B),XS(a)
      • P(b);N_GUARD::S(B)
      • P(f);OGATEB::QAB(A),XB(g)
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