MESON Chess Problem Database

Problem Display
PID: 181125 (8/4p3/4r3/2N3Q1/2Pk1PR1/8/PP2p3/K3N3 w - - 0 1)

van Dijk, Johannes

Tidskrift for Schack, 1904

8/4p3/4r3/2N3Q1/2Pk1PR1/8/PP2p3/K3N3

#2

9 + 4

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Re3
      • 2.Qd5#
  • Tries
    • 1.Sxe6+?
      • 1...Kxc4
        • 2.Qc5#
      • 1...Ke4
        • 2.Qe5#
      • 1...Ke3!
    • 1.Sd7?
      • 1...Kxc4
        • 2.Qc5#
      • 1...Ke4
        • 2.f5#
      • 1...Re3
        • 2.Qd5#
      • 1...Re4
        • 2.Qc5#
      • 1...Re5
        • 2.fxe5#
      • 1...Ra6
        • 2.f5#
      • 1...Rb6
        • 2.f5#
      • 1...Rc6
        • 2.f5#
      • 1...Rd6
        • 2.f5#
      • 1...Rf6
        • 2.f5#
      • 1...Rg6
        • 2.f5#
      • 1...Rh6
        • 2.f5#
      • 1...Ke3!
  • Keys
    • 1.Scd3!
      • 1...Ke3
        • 2.f5#
      • 1...Kxc4
        • 2.Qc5#
      • 1...Ke4
        • 2.f5#
      • 1...Re3
        • 2.Qd5#
      • 1...Re4
        • 2.Qc5#
      • 1...Re5
        • 2.fxe5#
      • 1...Ra6
        • 2.f5#
      • 1...Rb6
        • 2.f5#
      • 1...Rc6
        • 2.f5#
      • 1...Rd6
        • 2.f5#
      • 1...Rf6
        • 2.f5#
      • 1...Rg6
        • 2.f5#
      • 1...Rh6
        • 2.f5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 12
    • REMOVED MATES = 0
  • Sets
    • R(c);SBLOCK::QAR1(I)
  • Tries
    • Try
      • S(H);CHECK,XR(c)
      • Vars
        • K(b);P-FLIGHT,XP(E)::QAR1(I)
        • K(b);P-FLIGHT::QAR1(I)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • S(H);
      • Vars
        • K(b);P-FLIGHT,XP(E)::QAR1(I)
        • K(b);P-FLIGHT::R(G)+P(F)
        • R(c);SBLOCK::QAR1(I)
        • R(c);SBLOCK::QAB1(I)
        • R(c);OGATE::R(G)+P(F),XR(c)
        • R(c);N_GUARD,P_PINP(C)::R(G)+P(F)
        • R(c);N_GUARD::R(G)+P(F)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • S(H);
    • Vars
      • K(b);S_FLIGHT::QAB(I)+P(F)
      • K(b);P-FLIGHT,XP(E)::QAR1(I)
      • K(b);P-FLIGHT::R(G)+P(F)
      • R(c);SBLOCK::QAR1(I)
      • R(c);SBLOCK::QAB1(I)
      • R(c);OGATE::R(G)+P(F),XR(c)
      • R(c);N_GUARD,P_PINP(C)::R(G)+P(F)
      • R(c);N_GUARD::R(G)+P(F)
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