MESON Chess Problem Database

Problem Display
PID: 69257 (8/5p2/5Q2/2p4P/3pk3/1P5R/3p4/3N1K2 w - - 0 1)

Papot, AP

Tijdschrift vd NSB, 1897

8/5p2/5Q2/2p4P/3pk3/1P5R/3p4/3N1K2

#2

6 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...d3
      • 2.Sc3#
  • Tries
    • 1.Re3+?
      • 1...Kd5
        • 2.Re5#
      • 1...dxe3!
    • 1.Rf3?
      • threat
        • 2.Qf5#
      • 1...d3
        • 2.Sc3#
      • 1...Kd5!
    • 1.Rh4+?
      • 1...Kd3
        • 2.Qf5#
      • 1...Kd5!
  • Keys
    • 1.Rd3!
      • 1...Kxd3
        • 2.Qf5#
      • 1...Kd5
        • 2.Sc3#
      • 1...c4
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • P(b);N_GUARD::S(A)
  • Tries
    • Try
      • R(D);CHECK
      • Vars
        • K(c);OGATE,S_FLIGHT::R1(D)
      • Refutation
        • P(b);XR(D)
    • Try
      • R(D);
      • Threat
        • QAB1(F)
      • Vars
        • P(b);N_GUARD::S(A)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • R(D);CHECK
      • Vars
        • K(c);S_FLIGHT::QAB(F)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • R(D);
    • Vars
      • K(c);S_FLIGHT,XR(D)::QAB(F)
      • K(c);P_SPINP(b),S_FLIGHT::S(A)
      • P(d);N_GUARD::R1(D),XP(b)
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