MESON Chess Problem Database

Problem Display
PID: 223335 (8/3rp3/8/1P1k4/1R1PN1QN/r3p1nK/8/3R4 w - - 0 1)

Slater, George James

San Francisco Argonaut, 1886

8/3rp3/8/1P1k4/1R1PN1QN/r3p1nK/8/3R4

#2

8 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sf6+?
      • 1...Kd6
        • 2.Qxd7#
      • 1...exf6!
    • 1.Qf5+?
      • 1...e5
        • 2.Qxe5#
      • 1...Sxf5!
    • 1.Qxg3?
      • threat
        • 2.Qe5#
      • 1...Kxe4
        • 2.Qe5#
        • 2.Qf3#
        • 2.d5#
      • 1...Ke6
        • 2.Qg8#
      • 1...e5
        • 2.Qxe5#
      • 1...e2!
    • 1.Qf4?
      • threat
        • 2.Qe5#
      • 1...e5
        • 2.Qxe5#
      • 1...Ke6!
    • 1.Qg5+?
      • 1...Kxe4
        • 2.Qe5#
        • 2.d5#
      • 1...Ke6
        • 2.Qg8#
      • 1...e5
        • 2.Qxe5#
      • 1...Sf5!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qe5#
      • 1...Kxe4
        • 2.Qe5#
        • 2.d5#
      • 1...Ke6
        • 2.Qg8#
      • 1...e5
        • 2.Qxe5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);P-FLIGHT::QAR1(F),XR(e)
      • Refutation
        • P(f);XS(E)
    • Try
      • Q(F);CHECK
      • Vars
        • P(f);P_SPINP(f)::QAR1(F),XP(f)
      • Refutation
        • S(c);XQ(F)
    • Try
      • Q(F);XS(c)
      • Threat
        • QAR1(F)
      • Vars
        • K(d);S_FLIGHT::QAB(F)
        • P(f);::QAR1(F),XP(f)
      • Refutation
        • P(b);P_PINQ(F)
    • Try
      • Q(F);
      • Threat
        • QAR1(F)
      • Vars
        • P(f);::QAR1(F),XP(f)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);S_FLIGHT::QAB(F)
        • P(f);P_SPINP(f)::QAR1(F),XP(f)
      • Refutation
        • S(c);P_SPINS(c)
  • Actual
    • Q(F);
    • Threat
      • QAR1(F)
    • Vars
      • K(d);S_FLIGHT::QAB(F)
      • P(f);::QAR1(F),XP(f)
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