MESON Chess Problem Database

Problem Display
PID: 142787 (8/1R6/6K1/3pp3/5kp1/3p2p1/3P2P1/Q7 w - - 0 1)

Gold, Samuel

Shakhmatny Listok, 1880

8/1R6/6K1/3pp3/5kp1/3p2p1/3P2P1/Q7

#2

5 + 6

158 Brentano's Chess Monthly 1881
119 Tidskrift for Schack 1909
5454 Near Snap 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e4
      • 2.Rf7#
      • 2.Qf6#
  • Tries
    • 1.Kf6?
      • threat
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qxe5#
      • 1...e4
        • 2.Qe5#
        • 2.Qf1#
      • 1...d4!
    • 1.Rb4+?
      • 1...e4
        • 2.Qf6#
      • 1...d4!
    • 1.Re7?
      • threat
        • 2.Qxe5#
      • 1...Ke4
        • 2.Qxe5#
      • 1...e4
        • 2.Rf7#
        • 2.Qe5#
        • 2.Qf6#
        • 2.Qf1#
      • 1...d4!
    • 1.Qd4+?
      • 1...e4
        • 2.Rf7#
        • 2.Qf6#
      • 1...exd4!
    • 1.Qe1?
      • threat
        • 2.Rf7#
        • 2.Qe3#
      • 1...d4
        • 2.Rf7#
      • 1...e4!
    • 1.Qa7?
      • threat
        • 2.Qe3#
      • 1...Ke4
        • 2.Qe3#
      • 1...e4
        • 2.Qb8#
      • 1...d4!
  • Keys
    • 1.Qa8!
      • 1...Ke4
        • 2.Rb4#
      • 1...d4
        • 2.Rf7#
      • 1...e4
        • 2.Qb8#

This anticipates 10720(1967)

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • K(D);P-FLIGHT
      • Threat
        • QAB1(A),XP(f)
      • Vars
        • K(c);P-FLIGHT::QAR1(A),XP(f)
      • Refutation
        • P(e);
    • Try
      • R(E);CHECK
      • Vars
        • P(f);OGATE,P_SPINP(f)::QAR2(A)
      • Refutation
        • P(e);P_SPINP(e)
    • Try
      • R(E);
      • Threat
        • QAB1(A),XP(f)
      • Vars
        • K(c);P-FLIGHT,P_SPINP(f)::QAR1(A),XP(f)
      • Refutation
        • P(e);
    • Try
      • Q(A);CHECK
      • Refutation
        • P(f);XQ(A)
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Vars
        • P(e);::R(E)
      • Refutation
        • P(f);
    • Try
      • Q(A);
      • Threat
        • QAB1(A)
      • Vars
        • K(c);P-FLIGHT::QAR1(A)
        • P(f);OGATEB,SBLOCK::QAB(A)
      • Refutation
        • P(e);
  • Actual
    • Q(A);
    • Vars
      • K(c);P-FLIGHT::R(E)
      • P(e);::R(E)
      • P(f);OGATEB,SBLOCK::QAB(A)
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