MESON Chess Problem Database

Problem Display
PID: 15995 (K3B3/3R4/2p5/QP2p2b/1rk1N3/2P5/prP1n3/q2R4 w - - 0 1)

Paslack, Rainer

Die Schwalbe, 2000

K3B3/3R4/2p5/QP2p2b/1rk1N3/2P5/prP1n3/q2R4

#2

9 + 9

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc2
      • 2.Qxb4#
    • 1...Bf3
      • 2.Bf7#
    • 1...Bf7
      • 2.Bxf7#
    • 1...cxb5
      • 2.Rc7#
      • 2.Qc7#
  • Tries
    • 1.Sd6+?
      • 1...Kc5
        • 2.Qa7#
      • 1...Kxc3!
    • 1.R1d5?
      • threat
        • 2.Rc5#
      • 1...Rxc2
        • 2.Qxb4#
      • 1...Rxb5
        • 2.Sd2#
      • 1...cxd5
        • 2.Rc7#
      • 1...c5
        • 2.Rxc5#
      • 1...Qg1!
    • 1.b6?
      • threat
        • 2.Qc5#
      • 1...Rxc2
        • 2.Qxb4#
      • 1...Ra4
        • 2.Sd2#
        • 2.Sd6#
      • 1...c5
        • 2.Qxc5#
      • 1...Rb5!
  • Keys
    • 1.R7d5!
      • threat
        • 2.Rc5#
      • 1...Rxc2
        • 2.Qxb4#
      • 1...Rxb5
        • 2.Sd6#
      • 1...cxd5
        • 2.Qc7#
      • 1...c5
        • 2.Rxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • R(c);N_GUARD,XP(B)::QAR1(E),XR(e)
    • B(h);N_GUARD::B(I)
    • B(h);N_GUARD::B(I),XB(h)
  • Tries
    • Try
      • S(D);CHECK
      • Vars
        • K(f);P-FLIGHT::QAB(E)
      • Refutation
        • K(f);P-FLIGHT,P_SPINR(e),XP(C)
    • Try
      • R(A);
      • Threat
        • R1(A)
      • Vars
        • R(c);N_GUARD,XP(B)::QAR1(E),XR(e)
        • R(e);XP(F)::S(D)
        • P(i);OGATEB,SBLOCK,XR(A)::R(G)
        • P(i);::R1(A),XP(i)
      • Refutation
        • Q(a);
    • Try
      • P(F);
      • Threat
        • QAR1(E)
      • Vars
        • R(c);N_GUARD,XP(B)::QAR1(E),XR(e)
        • P(i);::QAR1(E),XP(i)
      • Refutation
        • R(e);
  • Actual
    • R(G);
    • Threat
      • R1(G)
    • Vars
      • R(c);N_GUARD,XP(B)::QAR1(E),XR(e)
      • R(e);XP(F)::S(D)
      • P(i);OGATEB,XR(G)::QAR(E)
      • P(i);::R1(G),XP(i)
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