MESON Chess Problem Database

Problem Display
PID: 216197 (5Kn1/4p3/4p2p/4k1pP/1P1RP1P1/1N1p4/7P/2B1R3 w - - 0 1)

Collins, Francis Charles

A Collection of 107 Chess Problems, 1881

5Kn1/4p3/4p2p/4k1pP/1P1RP1P1/1N1p4/7P/2B1R3

#2

10 + 7

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kf6
      • 2.e5#
  • Tries
    • 1.Kxg8?
      • 1...Kf6
        • 2.e5#
      • 1...d2!
    • 1.Sa5?
      • 1...Kxd4
        • 2.Bb2#
      • 1...Kf6
        • 2.e5#
      • 1...Sf6
        • 2.Sc6#
      • 1...d2!
    • 1.Bd2?
      • 1...Kf6
        • 2.e5#
      • 1...Sf6!
    • 1.Rxd3?
      • 1...Kf6
        • 2.e5#
      • 1...Sf6!
    • 1.Rd5+?
      • 1...Kf6
        • 2.Rf1#
        • 2.e5#
      • 1...exd5!
  • Keys
    • 1.Sd2!
      • 1...Kxd4
        • 2.Bb2#
      • 1...Kf4
        • 2.e5#
      • 1...Kf6
        • 2.e5#
      • 1...Sf6
        • 2.Sf3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(b);OGATE,S_FLIGHT::P(G)
  • Tries
    • Try
      • K(J);P-FLIGHT,XS(g)
      • Vars
        • K(b);OGATE,S_FLIGHT::P(G)
      • Refutation
        • P(a);
    • Try
      • S(D);
      • Vars
        • K(b);OGATEB,S_FLIGHT,XR(F)::B(A)
        • K(b);OGATE,S_FLIGHT::P(G)
        • S(g);SBLOCK::S(D)
      • Refutation
        • P(a);
    • Try
      • B(A);
      • Vars
        • K(b);OGATE,S_FLIGHT::P(G)
      • Refutation
        • S(g);
    • Try
      • R(F);XP(a)
      • Vars
        • K(b);OGATE,S_FLIGHT::P(G)
      • Refutation
        • S(g);
    • Try
      • R(F);CHECK
      • Refutation
        • P(d);XR(F)
  • Actual
    • S(D);
    • Vars
      • K(b);OGATEB,S_FLIGHT,XR(F)::B(A)
      • K(b);OGATE,S_FLIGHT::R(F)+P(G)
      • K(b);OGATE,S_FLIGHT::P(G)
      • S(g);SBLOCK::S(D)
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