MESON Chess Problem Database

Problem Display
PID: 82260 (8/B3p3/3n3R/1p1N4/1pkPP3/b6R/Pnp1P3/Q3K3 w - - 0 1)

Ahues, Herbert Siegfried Oskar

Schach, 1984

8/B3p3/3n3R/1p1N4/1pkPP3/b6R/Pnp1P3/Q3K3

#2

10 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Sb6#
    • 1...Sd3+
      • 2.exd3#
    • 1...Sa4
      • 2.Se3#
    • 1...Sf5
      • 2.Rc6#
    • 1...Sf7
      • 2.Rc6#
    • 1...Sc8
      • 2.Rc6#
    • 1...Se8
      • 2.Rc6#
    • 1...c1Q+
      • 2.Qxc1#
    • 1...c1S
      • 2.Qxc1#
    • 1...c1B
      • 2.Qxc1#
    • 1...c1R+
      • 2.Qxc1#
    • 1...b3
      • 2.Rc3#
      • 2.axb3#
  • Tries
    • 1.Kd2?
      • threat
        • 2.Se3#
      • 1...c1Q+
        • 2.Qxc1#
      • 1...c1B+
        • 2.Qxc1#
      • 1...Sd1
        • 2.Sb6#
      • 1...Sf5
        • 2.Rc6#
      • 1...b3
        • 2.Rc3#
        • 2.axb3#
      • 1...Sxe4+!
    • 1.Bc5?
      • threat
        • 2.Sb6#
      • 1...Sd3+
        • 2.exd3#
      • 1...c1Q+
        • 2.Qxc1#
      • 1...c1R+
        • 2.Qxc1#
      • 1...Sa4
        • 2.Se3#
      • 1...Sc8!
    • 1.Rxa3?
      • threat
        • 2.Se3#
      • 1...Sd3+
        • 2.exd3#
      • 1...c1Q+
        • 2.Qxc1#
      • 1...c1R+
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...Sd1
        • 2.Sb6#
      • 1...Sf5
        • 2.Rc6#
      • 1...b3
        • 2.axb3#
      • 1...bxa3!
    • 1.Rd3?
      • threat
        • 2.Se3#
        • 2.Sb6#
      • 1...c1Q+
        • 2.Qxc1#
      • 1...c1R+
        • 2.Qxc1#
      • 1...c1B
        • 2.Sb6#
        • 2.Qxc1#
      • 1...Sd1
        • 2.Sb6#
      • 1...Sa4
        • 2.Se3#
      • 1...Sf5
        • 2.Sb6#
        • 2.Rc6#
      • 1...Sc8
        • 2.Se3#
        • 2.Rc6#
      • 1...b3
        • 2.Rc3#
        • 2.axb3#
      • 1...Sxd3+!
    • 1.Rxd6?
      • threat
        • 2.Sb6#
        • 2.Rc6#
      • 1...Sd3+
        • 2.exd3#
      • 1...c1Q+
        • 2.Qxc1#
      • 1...c1R+
        • 2.Qxc1#
      • 1...Sa4
        • 2.Se3#
      • 1...b3
        • 2.Rc3#
        • 2.axb3#
      • 1...exd6!
  • Keys
    • 1.Rb3!
      • threat
        • 2.Se3#
      • 1...Sd3+
        • 2.exd3#
      • 1...c1Q+
        • 2.Qxc1#
      • 1...c1R+
        • 2.Qxc1#
      • 1...c1B
        • 2.Qxc1#
      • 1...Sd1
        • 2.Sb6#
      • 1...Sf5
        • 2.Rc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 5
  • Sets
    • S(a);::S(H)
    • S(a);CHECK,OGATE::P(D),XS(a)
    • S(g);OGATE::R(I)
    • P(b);CHECK,OGATEB::QAR(A),XQ(b)
    • P(b);OGATEB::QAR(A),XS(b)
    • P(b);OGATEB::QAR(A),XB(b)
    • P(b);CHECK,OGATEB::QAR(A),XR(b)
  • Tries
    • Try
      • K(B);S_FLIGHT
      • Threat
        • S(H)
      • Vars
        • P(b);CHECK,OGATEB::QAR(A),XQ(b)
        • P(b);CHECK,OGATEB::QAR(A),XB(b)
        • S(a);::S(H)
        • S(g);OGATE::R(I)
      • Refutation
        • S(g);CHECK,XP(G)
    • Try
      • B(J);
      • Threat
        • S(H)
      • Vars
        • S(a);CHECK,OGATE::P(D),XS(a)
        • P(b);CHECK,OGATEB::QAR(A),XQ(b)
        • P(b);CHECK,OGATEB::QAR(A),XR(b)
        • S(a);::S(H)
      • Refutation
        • S(g);
    • Try
      • R(E);XB(c)
      • Threat
        • S(H)
      • Vars
        • S(a);CHECK,OGATE::P(D),XS(a)
        • P(b);CHECK,OGATEB::QAR(A),XQ(b)
        • P(b);CHECK,OGATEB::QAR(A),XR(b)
        • P(b);OGATEB::QAR(A),XB(b)
        • S(a);::S(H)
        • S(g);OGATE::R(I)
        • P(d);OGATE::P(C),XP(d)
      • Refutation
        • P(d);XR(E)
    • Try
      • R(E);
      • Threat
        • DUALS(2)
      • Vars
        • P(b);CHECK,OGATEB::QAR(A),XQ(b)
        • P(b);CHECK,OGATEB::QAR(A),XR(b)
        • S(a);::S(H)
      • Refutation
        • S(a);CHECK,XR(E)
    • Try
      • R(I);XS(g)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);CHECK,OGATE::P(D),XS(a)
        • P(b);CHECK,OGATEB::QAR(A),XQ(b)
        • P(b);CHECK,OGATEB::QAR(A),XR(b)
        • S(a);::S(H)
      • Refutation
        • P(h);XR(I)
  • Actual
    • R(E);
    • Threat
      • S(H)
    • Vars
      • S(a);CHECK,OGATE::P(D),XS(a)
      • P(b);CHECK,OGATEB::QAR(A),XQ(b)
      • P(b);CHECK,OGATEB::QAR(A),XR(b)
      • P(b);OGATEB::QAR(A),XB(b)
      • S(a);::S(H)
      • S(g);OGATE::R(I)
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