MESON Chess Problem Database

Problem Display
PID: 39778 (8/8/6R1/5K2/7P/6pk/3Q3p/8 w - - 0 1)

Lincoln, Robert A

More Fun with Chess Miniatures, 2000

8/8/6R1/5K2/7P/6pk/3Q3p/8

#2

4 + 3

SOLUTION

  • SOUND
  • Sets
    • 1...Kxh4
      • 2.Rh6#
      • 2.Qh6#
  • Tries
    • 1.Rxg3+?
      • 1...Kxh4
        • 2.Qg5#
        • 2.Qxh2#
      • 1...Kxg3!
    • 1.Qd1?
      • 1...Kxh4
        • 2.Rh6#
        • 2.Qg4#
      • 1...h1Q
        • 2.Qxh1#
      • 1...h1S
        • 2.Qxh1#
      • 1...h1B
        • 2.Qxh1#
      • 1...h1R
        • 2.Qxh1#
      • 1...g2
        • 2.Qg4#
      • 1...Kg2!
    • 1.Qg2+?
      • 1...Kxh4
        • 2.Rh6#
      • 1...Kxg2!
    • 1.Qd5?
      • 1...Kxh4
        • 2.Rh6#
      • 1...h1Q
        • 2.Qxh1#
      • 1...h1S
        • 2.Qxh1#
      • 1...h1B
        • 2.Qxh1#
      • 1...h1R
        • 2.Qxh1#
      • 1...g2!
  • Keys
    • 1.Qe1!
      • threat
        • 2.Qxg3#
      • 1...Kg2
        • 2.Rxg3#
      • 1...Kxh4
        • 2.Rh6#
      • 1...h1S
        • 2.Qxh1#
      • 1...g2
        • 2.Qg3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • R(D);CHECK,XP(b)
      • Refutation
        • K(c);P-FLIGHT,XR(D)
    • Try
      • Q(A);
      • Vars
        • P(a);OGATEB::QAR2(A),XQ(a)
        • P(a);OGATEB::QAR2(A),XS(a)
        • P(a);OGATEB::QAR2(A),XB(a)
        • P(a);OGATEB::QAR2(A),XR(a)
        • P(b);::QAB1(A)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT
    • Try
      • Q(A);CHECK
      • Vars
        • K(c);P-FLIGHT,XP(B)::R(D)
      • Refutation
        • K(c);P_SPINP(b),S_FLIGHT,XQ(A)
    • Try
      • Q(A);
      • Vars
        • K(c);OGATEB,P-FLIGHT,XP(B)::R(D)
        • P(a);OGATEB::QAR2(A),XQ(a)
        • P(a);OGATEB::QAR2(A),XS(a)
        • P(a);OGATEB::QAR2(A),XB(a)
        • P(a);OGATEB::QAR2(A),XR(a)
      • Refutation
        • P(b);
  • Actual
    • Q(A);
    • Threat
      • QAR1(A),XP(b)
    • Vars
      • K(c);P_SPINP(b),S_FLIGHT::R1(D),XP(b)
      • K(c);OGATEB,P-FLIGHT,P_SPINP(b),XP(B)::R(D)
      • P(a);OGATEB::QAR2(A),XS(a)
      • P(b);::QAR1(A)
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