MESON Chess Problem Database

Problem Display
PID: 169916 (8/3N2nK/Q2N3R/1r1k4/1r2p1P1/b2nP3/P4P2/1b3B2 w - - 0 1)

Betesa Raurell, Salvador

SEPA, 1945

8/3N2nK/Q2N3R/1r1k4/1r2p1P1/b2nP3/P4P2/1b3B2

#2

10 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sxb5?
      • threat
        • 2.Sc3#
        • 2.Sc7#
        • 2.Qc6#
      • 1...Kc4
        • 2.Qc6#
      • 1...Rxb5
        • 2.Qc6#
      • 1...Rb3
        • 2.Sc7#
        • 2.Qc6#
      • 1...Bb2
        • 2.Sc7#
        • 2.Qc6#
      • 1...Se5
        • 2.Sc3#
        • 2.Sc7#
        • 2.Rd6#
        • 2.Qd6#
      • 1...Se6
        • 2.Sc3#
        • 2.Qxe6#
      • 1...Se8
        • 2.Sc3#
        • 2.Qc6#
        • 2.Qe6#
      • 1...Rc4!
    • 1.Se8?
      • threat
        • 2.Qc6#
      • 1...Rc4
        • 2.Sef6#
      • 1...Rc5
        • 2.Sef6#
        • 2.Rd6#
      • 1...Rb6
        • 2.Sc7#
      • 1...Se5
        • 2.Sef6#
        • 2.Sc7#
        • 2.Rd6#
        • 2.Qd6#
      • 1...Se6
        • 2.Qxe6#
      • 1...Kc4!
    • 1.Qxb5+?
      • 1...Sc5
        • 2.Qxc5#
      • 1...Rxb5!
  • Keys
    • 1.Sxe4!
      • threat
        • 2.Qc6#
      • 1...Kc4
        • 2.Sb6#
      • 1...Kxe4
        • 2.Bg2#
      • 1...Rc4
        • 2.Sef6#
      • 1...Rc5
        • 2.Sef6#
      • 1...Rb6
        • 2.Sc3#
      • 1...Se5
        • 2.Sf6#
      • 1...Se6
        • 2.Qxe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(G);XR(f)
      • Threat
        • DUALS(3)
      • Vars
        • K(g);P_SPINS(c),S_FLIGHT::QAR2(F)
        • R(d);XS(G)::QAB1(F)
      • Refutation
        • R(d);
    • Try
      • S(G);
      • Threat
        • QAB1(F)
      • Vars
        • R(d);SBLOCK::S(G)
        • R(f);::S(G)
        • S(h);N_GUARD::QAB1(F),XS(h)
      • Refutation
        • K(g);P_SPINR(f),P_SPINS(c),S_FLIGHT
    • Try
      • Q(F);CHECK,XR(f)
      • Vars
        • S(c);N_GUARD,P_SPINS(c)::QAR1(F),XS(c)
      • Refutation
        • R(d);XQ(F)
  • Actual
    • S(G);XP(e)
    • Threat
      • QAB1(F)
    • Vars
      • K(g);P_SPINR(f),P_SPINS(c),S_FLIGHT::S(I)
      • K(g);OGATEB,S_FLIGHT,XS(G)::B(A)
      • R(d);SBLOCK::S(G)
      • R(f);::S(G)
      • S(c);P_PINS(G),SBLOCK::S(I)
      • S(h);N_GUARD::QAB1(F),XS(h)
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