MESON Chess Problem Database

Problem Display
PID: 96787 (b1R1B3/q7/3kN3/1nrppP2/3p3B/2N2p1K/8/2Q5 w - - 0 1)

Verdaguer, JAS

Problemas, 1971

b1R1B3/q7/3kN3/1nrppP2/3p3B/2N2p1K/8/2Q5

#2

8 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qa1
      • 2.Rd8#
    • 1...Qa2
      • 2.Rd8#
    • 1...Qa3
      • 2.Rd8#
    • 1...Qa4
      • 2.Rd8#
    • 1...Qa6
      • 2.Rd8#
    • 1...Rc4
      • 2.Sxb5#
    • 1...Rc6
      • 2.Sxb5#
    • 1...Rc7
      • 2.Sxb5#
    • 1...Rxc8
      • 2.Sxb5#
    • 1...Bb7
      • 2.Rd8#
    • 1...Sc7
      • 2.Rd8#
    • 1...e4
      • 2.Qf4#
  • Tries
    • 1.Rc6+?
      • 1...Rxc6
        • 2.Sxb5#
      • 1...Bxc6!
  • Keys
    • 1.Sc7!
      • threat
        • 2.Qh6#
      • 1...Rxc3
        • 2.Sxb5#
      • 1...Rxc7
        • 2.Sxb5#
      • 1...Sxc7
        • 2.Rd8#
      • 1...Rc4
        • 2.S7xb5#
      • 1...Rc6
        • 2.S3xb5#
      • 1...e4
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 7
  • Sets
    • Q(h);N_GUARD::R(G)
    • R(d);N_GUARD::S(B),XS(c)
    • R(d);N_GUARD,XR(G)::S(B),XS(c)
    • B(i);S_CUTQ(h)::R(G)
    • S(c);S_CUTQ(h)::R(G)
    • P(f);OGATEB::QAB(A)
  • Tries
    • Try
      • R(G);CHECK
      • Vars
        • R(d);XR(G)::S(B),XS(c)
      • Refutation
        • B(i);XR(G)
  • Actual
    • S(F);
    • Threat
      • QAR(A)
    • Vars
      • R(d);N_GUARD,XS(B)::S(F),XS(c)
      • R(d);N_GUARD,XS(F)::S(B),XS(c)
      • S(c);SBLOCK,XS(F)::R(G)
      • R(d);N_GUARD::S(F),XS(c)
      • R(d);N_GUARD::S(B),XS(c)
      • P(f);OGATEB::QAB(A)
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