MESON Chess Problem Database

Problem Display
PID: 187917 (2N5/8/2p3p1/2ppkPP1/1p4RP/1P5B/1KQP4/8 w - - 0 1)

van Dijk, Johannes

De Maasbode, 1910

2N5/8/2p3p1/2ppkPP1/1p4RP/1P5B/1KQP4/8

#2

10 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...d4
      • 2.Qe4#
      • 2.Qxc5#
  • Tries
    • 1.Qb1?
      • 1...gxf5
        • 2.Qe1#
      • 1...d4
        • 2.Qe4#
      • 1...c4!
    • 1.Qd3?
      • 1...gxf5
        • 2.Qe2#
        • 2.Qe3#
      • 1...d4
        • 2.Qe4#
      • 1...c4!
    • 1.Qc3+?
      • 1...Kxf5
        • 2.Rxb4#
        • 2.Rc4#
        • 2.Qf6#
      • 1...d4
        • 2.Qxc5#
      • 1...bxc3+!
    • 1.Qc4?
      • threat
        • 2.Qf4#
      • 1...Kxf5
        • 2.Re4#
      • 1...gxf5
        • 2.Qe2#
      • 1...d4
        • 2.Qe6#
        • 2.Qxc5#
      • 1...dxc4!
    • 1.Qxc5?
      • 1...gxf5
        • 2.Qe3#
        • 2.Qd6#
        • 2.Qe7#
      • 1...Kxf5!
    • 1.fxg6?
      • 1...Ke6
        • 2.Re4#
      • 1...d4
        • 2.Qe4#
      • 1...c4!
  • Keys
    • 1.d3!
      • 1...Kxf5
        • 2.Re4#
      • 1...gxf5
        • 2.Qe2#
      • 1...d4
        • 2.Qxc5#
      • 1...c4
        • 2.d4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(B);
      • Vars
        • P(f);SBLOCK,XP(H)::QAR(B)
        • P(c);N_GUARD::QAR1(B)
      • Refutation
        • P(b);
    • Try
      • Q(B);
      • Vars
        • P(c);N_GUARD::QAR1(B)
      • Refutation
        • P(b);
    • Try
      • Q(B);CHECK
      • Vars
        • P(c);OGATEB,P_SPINP(c)::QAR2(B),XP(b)
      • Refutation
        • P(a);CHECK,XQ(B)
    • Try
      • Q(B);
      • Threat
        • QAB1(B)
      • Vars
        • K(d);P-FLIGHT,XP(H)::B(E)+R(F)
        • P(f);SBLOCK,XP(H)::QAR(B)
      • Refutation
        • P(c);XQ(B)
    • Try
      • Q(B);P_PINP(c),XP(b)
      • Refutation
        • K(d);P-FLIGHT,XP(H)
    • Try
      • P(H);XP(f)
      • Vars
        • K(d);P-FLIGHT::B(E)+R(F),DCHECK
        • P(c);N_GUARD::QAR1(B)
      • Refutation
        • P(b);
  • Actual
    • P(C);
    • Vars
      • K(d);P-FLIGHT,XP(H)::B(E)+R(F)
      • P(f);SBLOCK,XP(H)::QAR(B)
      • P(c);OGATEB::QAR2(B),XP(b)
      • P(b);N_GUARD::P(C)
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