MESON Chess Problem Database

Problem Display
PID: 95384 (3r1b2/8/2QP1NK1/2p3B1/2Pk4/2r1R1p1/b2N2q1/8 w - - 0 1)

Linss, Torsten

Sachsische Zeitung, 1984

3r1b2/8/2QP1NK1/2p3B1/2Pk4/2r1R1p1/b2N2q1/8

#2

8 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qf1
      • 2.Qe4#
      • 2.Qd5#
    • 1...Qh3
      • 2.Qe4#
      • 2.Qd5#
    • 1...Qe4+
      • 2.Qxe4#
    • 1...Qd5
      • 2.Qxd5#
    • 1...Qg1
      • 2.Qe4#
      • 2.Qd5#
    • 1...Qxd2
      • 2.Qe4#
      • 2.Qd5#
    • 1...Qe2
      • 2.Qe4#
      • 2.Qd5#
    • 1...Qf2
      • 2.Qe4#
      • 2.Qd5#
    • 1...Qh2
      • 2.Qe4#
      • 2.Qd5#
  • Tries
    • 1.Sf3+?
      • 1...Kxc4
        • 2.Qa4#
      • 1...Qxf3!
    • 1.Re4+?
      • 1...Qxe4+
        • 2.Qxe4#
      • 1...Kd3!
  • Keys
    • 1.Sde4!
      • threat
        • 2.Qd5#
        • 2.Qxc5#
      • 1...Qxe4+
        • 2.Qxe4#
      • 1...Kxc4
        • 2.Qa4#
      • 1...Ke5
        • 2.Qd5#
      • 1...Rxe3
        • 2.Qd5#
      • 1...Rxc4
        • 2.Qd5#
      • 1...Rxd6
        • 2.Qxc5#
      • 1...Bxc4
        • 2.Qxc5#
      • 1...Bxd6
        • 2.Qd5#
      • 1...Rc8
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 8
    • REMOVED MATES = 1
  • Sets
    • Q(b);CHECK,N_GUARD::QAR1(E),XQ(b)
    • Q(b);N_GUARD::QAR1(E),XQ(b)
  • Tries
    • Try
      • S(A);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINP(f),XP(C)::QAR2(E)
      • Refutation
        • Q(b);XS(A)
    • Try
      • R(B);CHECK
      • Vars
        • Q(b);CHECK,OGATE,XR(B)::QAR1(E),XQ(b)
      • Refutation
        • K(e);P-FLIGHT
  • Actual
    • S(A);
    • Threat
      • DUALS(2)
    • Vars
      • Q(b);CHECK,OGATE,XS(A)::QAR1(E),XQ(b)
      • K(e);OGATEB,P-FLIGHT,P_SPINP(f),XP(C)::QAR2(E)
      • K(e);S_FLIGHT::QAR1(E)
      • R(c);XR(B)::QAR1(E)
      • R(c);XP(C)::QAR1(E)
      • R(g);P_PINS(G),XP(F)::QAB1(E),XP(f)
      • B(a);XP(C)::QAB1(E),XP(f)
      • B(h);XP(F)::QAR1(E)
      • R(g);::QAR1(E)
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