MESON Chess Problem Database

Problem Display
PID: 69804 (2r5/PB1Qp3/3Pn2q/K1k2p2/R1ppPr2/8/3N4/5b2 w - - 0 1)

Richter, Frank

4th HM., Die Schwalbe, 2006

2r5/PB1Qp3/3Pn2q/K1k2p2/R1ppPr2/8/3N4/5b2

#2

8 + 10

23 Die Schwalbe 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Rc6
      • 2.Qxc6#
    • 1...Ra8
      • 2.Qc6#
    • 1...Rb8
      • 2.Qc6#
    • 1...Rd8
      • 2.Qc6#
    • 1...Re8
      • 2.Qc6#
    • 1...Rf8
      • 2.Qc6#
    • 1...Rg8
      • 2.Qc6#
    • 1...Rh8
      • 2.Qc6#
    • 1...Bg2
      • 2.Rxc4#
    • 1...Bh3
      • 2.Rxc4#
    • 1...Sc7
      • 2.Qc6#
    • 1...c3
      • 2.Sb3#
    • 1...d3
      • 2.Rxc4#
    • 1...exd6
      • 2.Qb5#
  • Tries
    • 1.Qxe6?
      • threat
        • 2.Qd5#
        • 2.Qe5#
      • 1...Rxe4
        • 2.Qd5#
      • 1...exd6
        • 2.Qd5#
        • 2.Qxc8#
      • 1...Qg7
        • 2.Qd5#
      • 1...Qf6
        • 2.Qd5#
      • 1...Qh8
        • 2.Qd5#
      • 1...Qxe6!
    • 1.Qxc8+?
      • 1...Sc7
        • 2.Qxc7#
      • 1...Kxd6!
    • 1.e5?
      • threat
        • 2.Qb5#
      • 1...Rc6
        • 2.Qxc6#
      • 1...Sc7
        • 2.Qc6#
      • 1...c3
        • 2.Sb3#
      • 1...d3!
    • 1.dxe7?
      • threat
        • 2.Qd5#
      • 1...Rd8
        • 2.Qc6#
      • 1...Sc7!
    • 1.a8Q?
      • threat
        • 2.Qa7#
      • 1...Rc6
        • 2.Qxc6#
      • 1...Rxa8+!
  • Keys
    • 1.Rb4!
      • threat
        • 2.Rb5#
      • 1...d3
        • 2.Rxc4#
      • 1...Sc7
        • 2.Qc6#
      • 1...c3
        • 2.Sb3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 11
  • Sets
    • R(j);N_GUARD::QAR1(H),XR(j)
    • R(j);N_GUARD,P_PINP(F)::QAR1(H)
    • R(j);N_GUARD::QAR1(H)
    • B(a);N_GUARD::R1(B),XP(b)
    • S(g);S_CUTR(j)::QAR1(H)
    • P(b);N_GUARD::S(A)
    • P(c);S_CUTB(a)::R1(B),XP(b)
    • P(i);SBLOCK,XP(E)::QAR1(H)
  • Tries
    • Try
      • Q(H);XS(g)
      • Threat
        • DUALS(2)
      • Vars
        • R(d);XP(C)::QAR1(H)
        • Q(h);::QAR1(H)
      • Refutation
        • Q(h);XQ(H)
    • Try
      • Q(H);CHECK,XR(j)
      • Vars
        • S(g);N_GUARD,P_SPINS(g)::QAR2(H),XS(g)
      • Refutation
        • K(e);S_FLIGHT,XP(E)
    • Try
      • P(C);
      • Threat
        • QAR1(H)
      • Vars
        • R(j);N_GUARD::QAR1(H),XR(j)
        • S(g);S_CUTR(j)::QAR1(H)
        • P(b);N_GUARD::S(A)
      • Refutation
        • P(c);
    • Try
      • P(E);XP(i)
      • Threat
        • QAR1(H)
      • Vars
        • R(j);N_GUARD::QAR1(H)
      • Refutation
        • S(g);
    • Try
      • P(F);
      • Threat
        • QAB(F)
      • Vars
        • R(j);N_GUARD::QAR1(H),XR(j)
      • Refutation
        • R(j);CHECK,XQ(F)
  • Actual
    • R(B);
    • Threat
      • R1(B)
    • Vars
      • P(c);S_CUTB(a)::R1(B),XP(b)
      • S(g);S_CUTR(j)::QAR1(H)
      • P(b);N_GUARD::S(A)
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