MESON Chess Problem Database

Problem Display
PID: 22194 (1r6/kq2R3/8/8/8/1R1Q4/8/K7 w - - 0 1)

Speckmann, Werner

Chess Life, 1972

1r6/kq2R3/8/8/8/1R1Q4/8/K7

#2

4 + 3

3295 Einfuhrung in die Welt des Schachproblem 1984
2786 More Fun with Chess Miniatures 2000

SOLUTION

  • SOUND
  • Sets
    • 1...Ra8
      • 2.Rbxb7#
      • 2.Rexb7#
  • Tries
    • 1.Rbxb7+?
      • 1...Ka8
        • 2.Ra7#
        • 2.Qa6#
        • 2.Qa3#
      • 1...Rxb7!
    • 1.Rexb7+?
      • 1...Ka8
        • 2.Qa6#
      • 1...Rxb7!
    • 1.Qb5?
      • threat
        • 2.Ra3#
        • 2.Qa4#
        • 2.Qa5#
      • 1...Qxe7
        • 2.Qa4#
        • 2.Qa5#
      • 1...Rc8
        • 2.Qxb7#
      • 1...Rd8
        • 2.Qxb7#
      • 1...Re8
        • 2.Qxb7#
      • 1...Rf8
        • 2.Qxb7#
      • 1...Rg8
        • 2.Qxb7#
      • 1...Rh8
        • 2.Qxb7#
      • 1...Ra8
        • 2.Rxb7#
        • 2.Qxb7#
      • 1...Ka8!
    • 1.Qd4+?
      • 1...Ka6
        • 2.Qa4#
      • 1...Ka8!
    • 1.Qd5?
      • threat
        • 2.Qa5#
      • 1...Ka8
        • 2.Ra3#
      • 1...Rc8
        • 2.Qxb7#
      • 1...Rd8
        • 2.Qxb7#
      • 1...Re8
        • 2.Qxb7#
      • 1...Rf8
        • 2.Qxb7#
      • 1...Rg8
        • 2.Qxb7#
      • 1...Rh8
        • 2.Qxb7#
      • 1...Ra8
        • 2.Qxb7#
      • 1...Ka6!
  • Keys
    • 1.Qe4!
      • threat
        • 2.Qa4#
      • 1...Ka6
        • 2.Qa4#
      • 1...Ka8
        • 2.Ra3#
      • 1...Rc8
        • 2.Qxb7#
      • 1...Rd8
        • 2.Qxb7#
      • 1...Re8
        • 2.Qxb7#
      • 1...Rf8
        • 2.Qxb7#
      • 1...Rg8
        • 2.Qxb7#
      • 1...Rh8
        • 2.Qxb7#
      • 1...Ra8
        • 2.Qxb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 9
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(B);CHECK,XQ(b)
      • Refutation
        • R(c);P_SPINR(c),XR(B)
    • Try
      • R(D);CHECK,XQ(b)
      • Vars
        • K(a);P-FLIGHT::QAR2(C)
      • Refutation
        • R(c);XR(D)
    • Try
      • Q(C);
      • Threat
        • DUALS(3)
      • Vars
        • R(c);N_GUARD::QAR1(C),XQ(b)
      • Refutation
        • K(a);N_SPINQ(b),P-FLIGHT
    • Try
      • Q(C);CHECK
      • Vars
        • K(a);N_SPINQ(b),P-FLIGHT::QAR2(C)
      • Refutation
        • K(a);N_SPINQ(b),P-FLIGHT
    • Try
      • Q(C);
      • Threat
        • QAR2(C)
      • Vars
        • K(a);P-FLIGHT::R(B)
        • R(c);N_GUARD::QAR1(C),XQ(b)
      • Refutation
        • K(a);N_SPINQ(b),P-FLIGHT
  • Actual
    • Q(C);
    • Threat
      • QAR(C)
    • Vars
      • K(a);N_SPINQ(b),P-FLIGHT::QAR2(C)
      • K(a);P-FLIGHT::R(B)
      • R(c);N_GUARD::QAR1(C),XQ(b)
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