MESON Chess Problem Database

Problem Display
PID: 193570 (2K5/8/2P2p2/2Pk1BR1/Q1R5/2P5/8/8 w - - 0 1)

van Dijk, Johannes

Tijdschrift vd NSB, 1915

2K5/8/2P2p2/2Pk1BR1/Q1R5/2P5/8/8

#2

8 + 2

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Bd7+?
      • 1...f5
        • 2.Rxf5#
      • 1...fxg5!
    • 1.Qd1+?
      • 1...Ke5
        • 2.Re4#
        • 2.Qd4#
        • 2.Qd6#
      • 1...Kxc6
        • 2.Bd7#
        • 2.Qd7#
      • 1...Kxc4!
    • 1.Qb3?
      • 1...Ke5
        • 2.Re4#
      • 1...Kxc6
        • 2.Be4#
        • 2.Bd7#
        • 2.Qb7#
      • 1...fxg5!
    • 1.Qa2?
      • 1...Ke5
        • 2.Re4#
      • 1...Kxc6
        • 2.Bd7#
      • 1...fxg5!
  • Keys
    • 1.Qc2!
      • threat
        • 2.Qe4#
      • 1...Kxc4
        • 2.Bd3#
      • 1...Ke5
        • 2.Qe4#
      • 1...Kxc6
        • 2.Bd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • B(E);CHECK
      • Vars
        • P(b);P_SPINP(b)::R(F),XP(b)
      • Refutation
        • P(b);XR(F)
    • Try
      • Q(B);CHECK
      • Refutation
        • K(a);S_FLIGHT,XR(C)
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::R1(C)
      • Refutation
        • P(b);XR(F)
    • Try
      • Q(B);
      • Vars
        • K(a);P-FLIGHT::R1(C)
        • K(a);S_FLIGHT,XP(G)::B(E)
      • Refutation
        • P(b);XR(F)
  • Actual
    • Q(B);
    • Threat
      • QAB1(B)
    • Vars
      • K(a);S_FLIGHT,XR(C)::B(E)
      • K(a);P-FLIGHT::QAR1(B)
      • K(a);S_FLIGHT,XP(G)::B(E)
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