MESON Chess Problem Database

Problem Display
PID: 109634 (8/1Q2bK2/2Nk3N/2p2P1n/b1B1pr2/8/3B4/8 w - - 0 1)

Vinagre, Jose C

Phenix, 2004

8/1Q2bK2/2Nk3N/2p2P1n/b1B1pr2/8/3B4/8

#2

7 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rxf5+
      • 2.Sxf5#
    • 1...Bxc6
      • 2.Qxe7#
    • 1...Sg3
      • 2.Bxf4#
    • 1...Sf6
      • 2.Bxf4#
    • 1...Sg7
      • 2.Bxf4#
  • Tries
    • 1.Kg6?
      • threat
        • 2.Sf7#
      • 1...Rxf5
        • 2.Sxf5#
      • 1...Rg4+!
    • 1.Bc3?
      • threat
        • 2.Be5#
      • 1...Rxf5+
        • 2.Sxf5#
      • 1...Bxc6
        • 2.Qxe7#
      • 1...Bf6!
    • 1.Ba5?
      • threat
        • 2.Qc7#
      • 1...Rxf5+
        • 2.Sxf5#
      • 1...Bd8!
    • 1.Qb8+?
      • 1...Kd7
        • 2.Se5#
      • 1...Kxc6!
  • Keys
    • 1.Be6!
      • threat
        • 2.Qd7#
      • 1...Rxf5+
        • 2.Sxf5#
      • 1...Bxc6
        • 2.Qb8#
      • 1...c4
        • 2.Bb4#
      • 1...Sf6
        • 2.Bxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 2
  • Sets
    • R(c);CHECK,XP(C)::S(E),XR(c)
    • B(a);SBLOCK,XS(D)::QAB1(F),XB(g)
    • S(e);N_GUARD::B(A),XR(c)
    • S(e);N_GUARD,N_PINP(C)::B(A),XR(c)
  • Tries
    • Try
      • K(G);N_SPINP(C),S_FLIGHT
      • Threat
        • S(E)
      • Vars
        • R(c);XP(C)::S(E),XR(c)
      • Refutation
        • R(c);CHECK
    • Try
      • B(A);
      • Threat
        • B(A)
      • Vars
        • R(c);CHECK,XP(C)::S(E),XR(c)
        • B(a);SBLOCK,XS(D)::QAB1(F),XB(g)
      • Refutation
        • B(g);N_PINP(C)
    • Try
      • B(A);
      • Threat
        • QAB1(F)
      • Vars
        • R(c);CHECK,XP(C)::S(E),XR(c)
      • Refutation
        • B(g);
    • Try
      • Q(F);CHECK
      • Vars
        • K(f);P-FLIGHT::S(D)
      • Refutation
        • K(f);P-FLIGHT,XS(D)
  • Actual
    • B(B);
    • Threat
      • QAR1(F)
    • Vars
      • R(c);CHECK,XP(C)::S(E),XR(c)
      • B(a);SBLOCK,XS(D)::QAB(F)
      • P(d);OGATEB::B(A)
      • S(e);N_GUARD,N_PINP(C)::B(A),XR(c)
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