MESON Chess Problem Database

Problem Display
PID: 47638 (B6b/2K1Bp2/2PP2pp/1NR1nPRN/2p1k1r1/4r3/2PpqQP1/8 w - - 0 1)

Guilbot, Fernand

Comm., Themes-64 01. TT (B), 1956

B6b/2K1Bp2/2PP2pp/1NR1nPRN/2p1k1r1/4r3/2PpqQP1/8

#2

13 + 11

4872 Themes-64 1957

SOLUTION

  • SOUND
  • Sets
    • 1...Ra3
      • 2.Qd4#
    • 1...Rb3
      • 2.Qd4#
    • 1...Rc3
      • 2.Sxc3#
      • 2.Qd4#
    • 1...Rf3
      • 2.Qd4#
    • 1...Reg3
      • 2.Qd4#
    • 1...Rh3
      • 2.Qd4#
    • 1...Rxg2
      • 2.Qf4#
    • 1...Rgg3
      • 2.Qf4#
    • 1...Rf4
      • 2.Qxf4#
    • 1...Rxg5
      • 2.Qf4#
    • 1...Bf6
      • 2.Sxf6#
    • 1...Sf3
      • 2.Rxg4#
    • 1...Sxc6
      • 2.Bxc6#
    • 1...Sd7
      • 2.cxd7#
    • 1...gxf5
      • 2.Qxf5#
  • Tries
    • 1.Sg3+?
      • 1...Rexg3
        • 2.Qd4#
      • 1...Rgxg3!
    • 1.Rxg4+?
      • 1...Sxg4
        • 2.Qf4#
      • 1...Qxg4!
    • 1.f6?
      • threat
        • 2.Rcxe5#
        • 2.Rgxe5#
      • 1...Rxg5
        • 2.Qf4#
      • 1...Bxf6
        • 2.Sxf6#
      • 1...Sxc6
        • 2.Bxc6#
        • 2.Rce5#
        • 2.Rge5#
      • 1...Sd3
        • 2.Rxc4#
      • 1...Sf3
        • 2.Rxg4#
      • 1...Sd7
        • 2.cxd7#
      • 1...hxg5!
  • Keys
    • 1.Bf6!
      • threat
        • 2.Rxe5#
      • 1...Bxf6
        • 2.Sxf6#
      • 1...Sxc6
        • 2.Bxc6#
        • 2.Re5#
      • 1...Sd3
        • 2.Sc3#
      • 1...Sf3
        • 2.Rxg4#
      • 1...Sd7
        • 2.cxd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 11
  • Sets
    • R(c);OGATE::QAR1(B)
    • R(f);N_GUARD,XP(C)::QAR1(B)
    • R(f);N_GUARD::QAR1(B)
    • R(f);N_GUARD::QAR1(B),XR(f)
    • R(f);N_GUARD,XR(G)::QAR1(B)
    • B(k);N_GUARD::S(H),XB(k)
    • S(g);N_GUARD,S_CUTQ(b)::R(G),XR(f)
    • S(g);OGATE,P_SPINS(g),XP(I)::B(M),XS(g)
    • S(g);OGATE::B(M)+P(I),XS(g)
    • P(h);OGATE,XP(F)::QAB1(B),XP(h)
  • Tries
    • Try
      • S(H);CHECK
      • Vars
        • R(c);OGATE,XS(H)::QAR1(B)
      • Refutation
        • R(f);XS(H)
    • Try
      • R(G);CHECK,XR(f)
      • Vars
        • S(g);XR(G)::QAR1(B)
      • Refutation
        • Q(b);XR(G)
    • Try
      • P(F);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);N_GUARD,XR(G)::QAR1(B)
        • B(k);XP(F)::S(H),XB(k)
        • S(g);N_GUARD,S_CUTQ(b)::R(E),XP(d)
        • S(g);N_GUARD,S_CUTQ(b)::R(G),XR(f)
        • S(g);OGATE::B(M)+P(I),XS(g)
      • Refutation
        • P(i);XR(G)
  • Actual
    • B(L);
    • Threat
      • R1(E),XS(g)
    • Vars
      • B(k);XB(L)::S(H),XB(k)
      • S(g);S_CUTR(c)::S(D)
      • S(g);N_GUARD,S_CUTQ(b)::R(G),XR(f)
      • S(g);OGATE::B(M)+P(I),XS(g)
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