MESON Chess Problem Database

Problem Display
PID: 258114 (8/2Rp1K2/1B1p1Qp1/3k2N1/2p2P2/r7/1nn5/1R6 w - - 0 1)

Bruchner, Siegfried

Berliner Morgenpost, 1959

8/2Rp1K2/1B1p1Qp1/3k2N1/2p2P2/r7/1nn5/1R6

#2

7 + 8

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sd1
      • 2.Rb5#
    • 1...Sa1
      • 2.Qd4#
    • 1...Se1
      • 2.Qd4#
    • 1...Se3
      • 2.Qd4#
    • 1...Sb4
      • 2.Qd4#
    • 1...Sd4
      • 2.Qxd4#
  • Tries
    • 1.Kxg6?
      • threat
        • 2.Qf5#
        • 2.Qf7#
      • 1...Sd3
        • 2.Qf7#
      • 1...Se3
        • 2.Qd4#
        • 2.Qf7#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Re3!
    • 1.Ke7?
      • threat
        • 2.Qxd6#
        • 2.Qf7#
      • 1...Sd4
        • 2.Qxd4#
        • 2.Qxd6#
      • 1...Re3+!
    • 1.Kg7?
      • threat
        • 2.Qf7#
      • 1...Sd4
        • 2.Qxd4#
      • 1...Re3!
    • 1.Rc6?
      • threat
        • 2.Rxd6#
        • 2.Qxd6#
      • 1...dxc6
        • 2.Qe6#
      • 1...c3
        • 2.Qxd6#
      • 1...Kxc6!
    • 1.Qxg6?
      • threat
        • 2.Qe4#
        • 2.Qf5#
      • 1...Sd3
        • 2.Qe4#
      • 1...Se3
        • 2.Qe4#
      • 1...Sd4
        • 2.Qe4#
      • 1...Re3!
  • Keys
    • 1.Qh8!
      • 1...Re3
        • 2.Qa8#
      • 1...Ra1
        • 2.Qh1#
      • 1...Ra2
        • 2.Qh1#
      • 1...Rb3
        • 2.Qa8#
      • 1...Rc3
        • 2.Qa8#
      • 1...Rd3
        • 2.Qa8#
      • 1...Rf3
        • 2.Qa8#
      • 1...Rg3
        • 2.Qa8#
      • 1...Rh3
        • 2.Qa8#
      • 1...Ra4
        • 2.Qh1#
      • 1...Ra5
        • 2.Qh1#
      • 1...Ra6
        • 2.Qh1#
      • 1...Ra7
        • 2.Qh1#
      • 1...Ra8
        • 2.Qh1#
        • 2.Qxa8#
      • 1...Sd1
        • 2.Rb5#
      • 1...Sd3
        • 2.Qh1#
      • 1...Sa4
        • 2.Qa8#
      • 1...Sa1
        • 2.Qd4#
      • 1...Se1
        • 2.Qd4#
      • 1...Se3
        • 2.Qd4#
      • 1...Sb4
        • 2.Qd4#
      • 1...Sd4
        • 2.Qxd4#
      • 1...c3
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 16
    • REMOVED MATES = 0
  • Sets
    • S(a);OGATE::R(A)
    • S(b);N_GUARD::QAR1(E)
    • S(b);N_GUARD::QAR1(E),XS(b)
  • Tries
    • Try
      • K(G);S_FLIGHT,XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAB(E)
        • S(b);N_GUARD::QAR1(E),XS(b)
      • Refutation
        • R(c);
    • Try
      • K(G);P-FLIGHT
      • Threat
        • DUALS(2)
      • Refutation
        • R(c);CHECK
    • Try
      • K(G);P-FLIGHT
      • Threat
        • QAB(E)
      • Vars
        • S(b);N_GUARD::QAR1(E),XS(b)
      • Refutation
        • R(c);
    • Try
      • R(F);
      • Threat
        • DUALS(2)
      • Vars
        • P(h);N_GUARD,SBLOCK,XR(F)::QAB1(E)
        • P(d);::QAR1(E),XP(f)
      • Refutation
        • K(e);P_SPINP(f),S_FLIGHT,XR(F)
    • Try
      • Q(E);XP(g)
      • Threat
        • DUALS(2)
      • Vars
        • S(a);::QAB1(E)
        • S(b);::QAB1(E)
      • Refutation
        • R(c);
  • Actual
    • Q(E);
    • Vars
      • R(c);N_GUARD::QAB(E)
      • R(c);N_GUARD,P_PINP(B)::QAB(E)
      • S(a);OGATE::R(A)
      • S(a);S_CUTR(c)::QAB(E)
      • S(b);N_GUARD::QAR1(E)
      • S(b);N_GUARD::QAR1(E),XS(b)
      • P(d);S_CUTR(c)::QAB(E)
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