MESON Chess Problem Database

Problem Display
PID: 223108 (1R6/p2pR3/P2kN3/8/2B5/P2K4/1Q6/8 w - - 0 1)

Kaiser, Julius Adam

Philadelphia Times, 1885

1R6/p2pR3/P2kN3/8/2B5/P2K4/1Q6/8

#2

8 + 3

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sd8?
      • threat
        • 2.Qe5#
      • 1...Kc5
        • 2.Qd4#
        • 2.Qb4#
      • 1...Kc7
        • 2.Qe5#
        • 2.Qh2#
      • 1...Kxe7!
    • 1.Rxd7+?
      • 1...Kc6
        • 2.Bb5#
        • 2.Qb5#
        • 2.Qb7#
      • 1...Kxd7!
    • 1.Qd4+?
      • 1...Kc6
        • 2.Bb5#
        • 2.Rc8#
        • 2.Qc5#
        • 2.Qd5#
        • 2.Qxd7#
      • 1...Kxe7!
    • 1.Qe5+?
      • 1...Kc6
        • 2.Sd4#
        • 2.Sd8#
        • 2.Bb5#
        • 2.Bd5#
        • 2.Qc7#
        • 2.Qc5#
        • 2.Qd5#
      • 1...Kxe7
        • 2.Sd4#
        • 2.Sf4#
        • 2.Sc5#
        • 2.Sg5#
        • 2.Sc7#
        • 2.Sg7#
        • 2.Sf8#
      • 1...Kxe5!
    • 1.Qf2?
      • threat
        • 2.Qc5#
      • 1...Ke5
        • 2.Qf4#
      • 1...Kc6
        • 2.Qc5#
      • 1...Kxe7
        • 2.Qf8#
      • 1...dxe6!
    • 1.Qh2+?
      • 1...Kc6
        • 2.Qc7#
      • 1...Kxe7!
    • 1.Qb4+?
      • 1...Kc6
        • 2.Rc8#
        • 2.Qc5#
      • 1...Ke5!
    • 1.Qb5?
      • threat
        • 2.Rxd7#
        • 2.Qc5#
      • 1...dxe6
        • 2.Rd7#
      • 1...Kxe7!
  • Keys
    • 1.Sd4!
      • 1...Kc5
        • 2.Qb4#
      • 1...Kc7
        • 2.Qh2#
      • 1...Kxe7
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB1(A)
      • Refutation
        • K(a);S_FLIGHT,XR(G)
    • Try
      • R(G);CHECK,XP(c)
      • Refutation
        • K(a);P-FLIGHT,XR(G)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT,XR(G)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(a);S_FLIGHT::QAB1(A)
        • K(a);P-FLIGHT::QAR1(A)
        • K(a);OGATEB,S_FLIGHT,XR(G)::QAB1(A)
      • Refutation
        • P(c);XS(F)
    • Try
      • Q(A);CHECK
      • Vars
        • K(a);OGATE,P-FLIGHT::QAR1(A)
      • Refutation
        • K(a);S_FLIGHT,XR(G)
    • Try
      • Q(A);CHECK
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(c);XS(F)::R1(G)
      • Refutation
        • K(a);S_FLIGHT,XR(G)
  • Actual
    • S(F);
    • Vars
      • K(a);S_FLIGHT::QAB1(A)
      • K(a);P_SPINP(c),S_FLIGHT::QAB(A)
      • K(a);S_FLIGHT,XR(G)::S(F)
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