MESON Chess Problem Database

Problem Display
PID: 194226 (1b2B3/p3Qp2/n2P1N2/B1k2K2/p1P1p2p/p1P1pn1P/P1R1N3/8 w - - 0 1)

Erlin, Konrad (AKA Erlinger, Konrad)

Magyar Sakkvilag, 1917

1b2B3/p3Qp2/n2P1N2/B1k2K2/p1P1p2p/p1P1pn1P/P1R1N3/8

#2

12 + 11

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sd4+
      • 2.cxd4#
    • 1...Sb4
      • 2.cxb4#
  • Tries
    • 1.Qe5+?
      • 1...Kxc4
        • 2.Bb5#
        • 2.Qb5#
        • 2.Qd5#
      • 1...Sxe5!
    • 1.Qe6?
      • threat
        • 2.Sxe4#
        • 2.Qd5#
      • 1...Sd4+
        • 2.cxd4#
      • 1...Sd2
        • 2.Qd5#
      • 1...Sg5
        • 2.Qd5#
      • 1...Sb4
        • 2.Sxe4#
        • 2.cxb4#
      • 1...Sc7
        • 2.Sxe4#
      • 1...fxe6+!
    • 1.Qb7?
      • threat
        • 2.Qd5#
        • 2.Qc6#
      • 1...Kxc4
        • 2.Qd5#
        • 2.Qb5#
      • 1...Kxd6
        • 2.Sxe4#
      • 1...Se5
        • 2.Qd5#
      • 1...Sb4
        • 2.Qxb4#
      • 1...Sc7
        • 2.Qc6#
        • 2.Qb4#
      • 1...Sd4+!
    • 1.Qd7?
      • threat
        • 2.Qc6#
      • 1...Sd4+
        • 2.cxd4#
      • 1...Kxc4
        • 2.Qb5#
      • 1...Sb4
        • 2.cxb4#
      • 1...Se5!
    • 1.Qxf7?
      • threat
        • 2.Sxe4#
        • 2.Qd5#
      • 1...Kxd6
        • 2.Sxe4#
        • 2.Qf8#
      • 1...Sd2
        • 2.Qd5#
      • 1...Sg5
        • 2.Qd5#
      • 1...Sb4
        • 2.Sxe4#
      • 1...Sc7
        • 2.Sxe4#
      • 1...Sd4+!
  • Keys
    • 1.Bb5!
      • threat
        • 2.Sxe4#
        • 2.Sd7#
      • 1...Sd4+
        • 2.cxd4#
      • 1...Sd2
        • 2.Sd7#
        • 2.Qe5#
      • 1...Se5
        • 2.Sxe4#
        • 2.Qxe5#
      • 1...Sg5
        • 2.Sd7#
        • 2.Qe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 1
  • Sets
    • S(c);CHECK,OGATE::P(D),XS(c)
    • S(h);OGATE::P(D),XS(h)
  • Tries
    • Try
      • Q(K);CHECK
      • Refutation
        • S(c);XQ(K)
    • Try
      • Q(K);
      • Threat
        • DUALS(2)
      • Vars
        • S(c);CHECK,OGATE::P(D),XS(c)
        • S(c);::QAR1(K)
        • S(h);::S(J),XP(e)
      • Refutation
        • P(j);CHECK,XQ(K)
    • Try
      • Q(K);
      • Threat
        • DUALS(2)
      • Vars
        • K(g);S_FLIGHT,XP(I)::S(J),XP(e)
        • S(c);::QAR1(K)
        • S(h);N_GUARD::QAB1(K),XS(h)
      • Refutation
        • S(c);CHECK
    • Try
      • Q(K);
      • Threat
        • QAR1(K)
      • Vars
        • S(c);CHECK,OGATE::P(D),XS(c)
        • K(g);P-FLIGHT,XP(F)::QAB1(K)
        • S(h);OGATE::P(D),XS(h)
      • Refutation
        • S(c);
    • Try
      • Q(K);XP(j)
      • Threat
        • DUALS(2)
      • Vars
        • S(c);::QAR1(K)
        • S(h);::S(J),XP(e)
      • Refutation
        • S(c);CHECK
  • Actual
    • B(L);
    • Threat
      • DUALS(2)
    • Vars
      • S(c);CHECK,OGATE::P(D),XS(c)
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