MESON Chess Problem Database

Problem Display
PID: 202605 (8/2p1p3/2p1B2p/2N1k2K/Q1p1N3/6p1/6p1/3R2B1 w - - 0 1)

Dalton, William Robert Inge

Brisbane Courier, 1923

8/2p1p3/2p1B2p/2N1k2K/Q1p1N3/6p1/6p1/3R2B1

#2

7 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sc3?
      • 1...Kf6
        • 2.Bd4#
      • 1...Kf4!
    • 1.Sxg3?
      • 1...Kf6
        • 2.Bd4#
      • 1...c3
        • 2.Qd4#
      • 1...Kf4!
    • 1.Sg5?
      • 1...Kf4
        • 2.Sd3#
      • 1...Kf6
        • 2.Bd4#
      • 1...c3
        • 2.Sd7#
        • 2.Qd4#
      • 1...hxg5!
    • 1.Rd5+?
      • 1...Kf4
        • 2.Rf5#
      • 1...cxd5!
    • 1.Qa3?
      • threat
        • 2.Qxg3#
      • 1...Kf4
        • 2.Qxg3#
      • 1...c3!
  • Keys
    • 1.Sd2!
      • 1...Kf4
        • 2.Sd3#
      • 1...Kd6
        • 2.Sf3#
        • 2.Sxc4#
      • 1...Kf6
        • 2.Bd4#
      • 1...c3
        • 2.Qd4#

FEATURES

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