MESON Chess Problem Database

Problem Display
PID: 59314 (6BQ/3pp3/4bPP1/1KpkP3/1p1q4/8/N4N1B/3RR1n1 w - - 0 1)

Sarkits, Anatoly L

Variantim, 2004

6BQ/3pp3/4bPP1/1KpkP3/1p1q4/8/N4N1B/3RR1n1

#2

11 + 8

SOLUTION

  • SOUND
  • Sets
    • 1...Qxd1
      • 2.Rxd1#
    • 1...Qd2
      • 2.Rxd2#
    • 1...Qd3+
      • 2.Rxd3#
    • 1...b3
      • 2.Sc3#
    • 1...c4
      • 2.Sxb4#
  • Tries
    • 1.Bxe6+?
      • 1...dxe6
        • 2.Qa8#
        • 2.Qd8#
      • 1...Kxe6!
    • 1.Bf7?
      • threat
        • 2.Qa8#
      • 1...Qd3+
        • 2.Rxd3#
      • 1...Qxd1
        • 2.Rxd1#
      • 1...Qd2
        • 2.Rxd2#
      • 1...Bxf7!
    • 1.Rxd4+?
      • 1...cxd4
        • 2.Sxb4#
      • 1...Kxd4!
  • Keys
    • 1.Qh5!
      • 1...Qd3+
        • 2.Rxd3#
      • 1...Qxd1
        • 2.Rxd1#
        • 2.Qxd1#
      • 1...Bxg8
        • 2.e6#
      • 1...exf6
        • 2.exf6#
      • 1...Qd2
        • 2.Rxd2#
      • 1...Bf7
        • 2.e6#
      • 1...Se2
        • 2.Qf3#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Sh3
        • 2.Qf3#
      • 1...b3
        • 2.Sc3#
      • 1...c4
        • 2.Sxb4#
      • 1...d6
        • 2.exd6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • Q(c);N_SPINQ(c),OGATE,XR(A)::R(B),XQ(c)
    • Q(c);OGATEB::R(A),XQ(c)
    • Q(c);CHECK,OGATEB::R(A),XQ(c)
    • P(b);N_GUARD::S(C)
    • P(d);N_GUARD::S(C),XP(b)
  • Tries
    • Try
      • B(J);CHECK,XB(f)
      • Refutation
        • K(e);N_SPINQ(c),S_FLIGHT,XB(J)
    • Try
      • B(J);
      • Threat
        • QAB(K)
      • Vars
        • Q(c);CHECK,OGATEB::R(A),XQ(c)
        • Q(c);N_SPINQ(c),OGATE,XR(A)::R(B),XQ(c)
        • Q(c);OGATEB::R(A),XQ(c)
      • Refutation
        • B(f);N_SPINB(f),XB(J)
    • Try
      • R(A);CHECK,XQ(c)
      • Vars
        • P(d);SBLOCK,XR(A)::S(C),XP(b)
      • Refutation
        • K(e);N_SPINB(f),P-FLIGHT,XR(A)
  • Actual
    • Q(K);
    • Vars
      • Q(c);CHECK,OGATEB::R(A),XQ(c)
      • B(f);N_SPINB(f),OGATE,XB(J)::QAR(K)+P(G)
      • P(h);OGATE,XP(H)::QAR(K)+P(G),XP(h)
      • Q(c);OGATEB::R(A),XQ(c)
      • B(f);OGATE::QAR(K)+P(G)
      • S(a);N_GUARD::QAB(K)
      • S(a);N_GUARD::QAB(K),XS(a)
      • P(b);N_GUARD::S(C)
      • P(d);N_GUARD::S(C),XP(b)
      • P(g);OGATE::QAR(K)+P(G),XP(g)
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