MESON Chess Problem Database

Problem Display
PID: 273594 (8/8/1N6/8/Rp2p3/1pR1p3/bkp1K1p1/6Q1 w - - 0 1)

Turcot, JL

diagrammes, 1978

8/8/1N6/8/Rp2p3/1pR1p3/bkp1K1p1/6Q1

#2

5 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...c1Q
      • 2.Qxc1#
    • 1...c1S+
      • 2.Qxc1#
    • 1...c1B
      • 2.Qxc1#
    • 1...c1R
      • 2.Qxc1#
    • 1...bxc3
      • 2.Sc4#
  • Tries
    • 1.Rxb3+?
      • 1...Bxb3
        • 2.Qa1#
      • 1...Kxb3!
    • 1.Rc4?
      • 1...c1S+
        • 2.Qxc1#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...Bb1!
    • 1.Rc5?
      • 1...c1S+
        • 2.Qxc1#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...Bb1!
    • 1.Rc6?
      • 1...c1S+
        • 2.Qxc1#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...Bb1!
    • 1.Rc7?
      • 1...c1S+
        • 2.Qxc1#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...Bb1!
    • 1.Rc8?
      • 1...c1S+
        • 2.Qxc1#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...Bb1!
    • 1.Rxa2+?
      • 1...Kxc3
        • 2.Qxe3#
      • 1...bxa2
        • 2.Sa4#
      • 1...Kxa2!
    • 1.Qe1?
      • threat
        • 2.Sc4#
      • 1...c1S+
        • 2.Qxc1#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...g1S+!
  • Keys
    • 1.Ra3!
      • 1...c1S+
        • 2.Qxc1#
      • 1...Kxa3
        • 2.Qc1#
      • 1...Kxc3
        • 2.Qa1#
      • 1...bxa3
        • 2.Sa4#
      • 1...bxc3
        • 2.Sc4#
      • 1...c1Q
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...c1R
        • 2.Qxc1#
      • 1...Bb1
        • 2.Rcxb3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • P(c);::QAB1(A),XQ(c)
    • P(c);CHECK::QAB1(A),XS(c)
    • P(c);::QAB1(A),XB(c)
    • P(c);::QAB1(A),XR(c)
    • P(g);SBLOCK,XR(C)::S(E)
  • Tries
    • Try
      • R(C);CHECK,XP(e)
      • Vars
        • B(a);SBLOCK,XR(C)::QAB1(A)
      • Refutation
        • K(b);P-FLIGHT,XR(C)
    • Try
      • R(C);
      • Vars
        • P(c);CHECK::QAB1(A),XS(c)
        • P(c);::QAB1(A),XQ(c)
        • P(c);::QAB1(A),XB(c)
        • P(c);::QAB1(A),XR(c)
      • Refutation
        • B(a);
    • Try
      • R(C);
      • Vars
        • P(c);CHECK::QAB1(A),XS(c)
        • P(c);::QAB1(A),XQ(c)
        • P(c);::QAB1(A),XB(c)
        • P(c);::QAB1(A),XR(c)
      • Refutation
        • B(a);
    • Try
      • R(C);
      • Vars
        • P(c);CHECK::QAB1(A),XS(c)
        • P(c);::QAB1(A),XQ(c)
        • P(c);::QAB1(A),XB(c)
        • P(c);::QAB1(A),XR(c)
      • Refutation
        • B(a);
    • Try
      • R(C);
      • Vars
        • P(c);CHECK::QAB1(A),XS(c)
        • P(c);::QAB1(A),XQ(c)
        • P(c);::QAB1(A),XB(c)
        • P(c);::QAB1(A),XR(c)
      • Refutation
        • B(a);
    • Try
      • R(C);
      • Vars
        • P(c);CHECK::QAB1(A),XS(c)
        • P(c);::QAB1(A),XQ(c)
        • P(c);::QAB1(A),XB(c)
        • P(c);::QAB1(A),XR(c)
      • Refutation
        • B(a);
    • Try
      • R(D);CHECK,XB(a)
      • Vars
        • K(b);N_GUARD,S_CUTP(e),S_FLIGHT,XR(C)::QAR2(A),XP(f)
        • P(e);SBLOCK,XR(D)::S(E)
      • Refutation
        • K(b);P-FLIGHT,XR(D)
    • Try
      • Q(A);
      • Threat
        • S(E)
      • Vars
        • P(c);CHECK::QAB1(A),XS(c)
        • P(c);::QAB1(A),XQ(c)
        • P(c);::QAB1(A),XB(c)
        • P(c);::QAB1(A),XR(c)
      • Refutation
        • P(d);CHECK
  • Actual
    • R(D);
    • Vars
      • P(c);CHECK::QAB1(A),XS(c)
      • K(b);N_GUARD,P_SPINP(e),S_FLIGHT,XR(D)::QAB(A)
      • K(b);N_GUARD,P_SPINP(e),S_FLIGHT,XR(C)::QAB(A)
      • P(g);SBLOCK,XR(D)::S(E)
      • P(g);SBLOCK,XR(C)::S(E)
      • P(c);::QAB1(A),XQ(c)
      • P(c);::QAB1(A),XB(c)
      • P(c);::QAB1(A),XR(c)
      • B(a);N_GUARD::R1(C),XP(e)
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Developed and maintained by Brian Stephenson.
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