MESON Chess Problem Database

Problem Display
PID: 93873 (1B1RR3/r3p3/2N1k1K1/rn3p2/2P2P1p/3N2P1/6n1/6qB w - - 0 1)

Rasmussen, Viktor E

Sachove umeni (Ceskoslovensky sach), 1953

1B1RR3/r3p3/2N1k1K1/rn3p2/2P2P1p/3N2P1/6n1/6qB

#2

10 + 9

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qh2
      • 2.Sc5#
    • 1...Qc5
      • 2.Sxc5#
    • 1...Qa1
      • 2.Sc5#
    • 1...Qb1
      • 2.Sc5#
    • 1...Qc1
      • 2.Sc5#
    • 1...Qd1
      • 2.Sc5#
    • 1...Qe1
      • 2.Sc5#
    • 1...Qf1
      • 2.Sc5#
    • 1...Qxh1
      • 2.Sc5#
    • 1...Ra6
      • 2.Rxe7#
    • 1...Ra8
      • 2.Rxe7#
    • 1...Se1
      • 2.Bd5#
    • 1...Se3
      • 2.Sc5#
    • 1...Sxf4+
      • 2.Sxf4#
    • 1...Sa3
      • 2.Rd6#
    • 1...Sc3
      • 2.Rd6#
    • 1...Sd4
      • 2.Rd6#
    • 1...Sd6
      • 2.Rxd6#
    • 1...Sc7
      • 2.Rxe7#
  • Tries
    • 1.Sd4+?
      • 1...Sxd4
        • 2.Rd6#
      • 1...Qxd4!
    • 1.Bc7?
      • threat
        • 2.Rxe7#
      • 1...Sxf4+
        • 2.Sxf4#
      • 1...Qc5
        • 2.Sxc5#
      • 1...Rxc7!
    • 1.Rd5?
      • threat
        • 2.Sd8#
      • 1...Sxf4+
        • 2.Sxf4#
      • 1...Sd6
        • 2.Rxd6#
      • 1...Rd7
        • 2.Re5#
      • 1...Qb6!
  • Keys
    • 1.g4!
      • threat
        • 2.gxf5#
      • 1...Sxf4+
        • 2.Sxf4#
      • 1...fxg4
        • 2.f5#
      • 1...Qc5
        • 2.Sxc5#
      • 1...Se1
        • 2.Bd5#
      • 1...Se3
        • 2.Sc5#
      • 1...Sa3
        • 2.Rd6#
      • 1...Sc3
        • 2.Rd6#
      • 1...Sd4
        • 2.Rd6#
      • 1...Sd6
        • 2.Rxd6#
      • 1...Sc7
        • 2.Rxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 10
  • Sets
    • Q(a);N_GUARD::S(B)
    • Q(a);N_GUARD::S(B),XQ(a)
    • Q(a);N_GUARD,XB(A)::S(B)
    • R(h);N_GUARD::R1(J),XP(i)
    • S(b);OGATE,P_PINP(C)::B(A)
    • S(b);P_PINP(C),S_CUTQ(a)::S(B)
    • S(b);CHECK,P_PINP(C),XP(E)::S(B),XS(b)
    • S(e);N_GUARD::R1(I)
    • S(e);N_GUARD::R1(I),XS(e)
    • S(e);S_CUTR(h)::R1(J),XP(i)
  • Tries
    • Try
      • S(F);CHECK
      • Vars
        • S(e);XS(F)::R1(I)
      • Refutation
        • Q(a);XS(F)
    • Try
      • B(H);
      • Threat
        • R1(J),XP(i)
      • Vars
        • S(b);CHECK,P_PINP(C),XP(E)::S(B),XS(b)
        • Q(a);N_GUARD::S(B),XQ(a)
      • Refutation
        • R(h);XB(H)
    • Try
      • R(I);
      • Threat
        • S(F)
      • Vars
        • S(b);CHECK,P_PINP(C),XP(E)::S(B),XS(b)
        • S(e);N_GUARD::R1(I),XS(e)
        • R(h);SBLOCK::R1(I)
      • Refutation
        • Q(a);
  • Actual
    • P(C);
    • Threat
      • P(C),XP(f)
    • Vars
      • S(b);CHECK,P_PINP(C),XP(E)::S(B),XS(b)
      • P(f);OGATE,XP(C)::P(E)
      • Q(a);N_GUARD::S(B),XQ(a)
      • S(b);OGATE,P_PINP(C)::B(A)
      • S(b);P_PINP(C),S_CUTQ(a)::S(B)
      • S(e);N_GUARD::R1(I)
      • S(e);N_GUARD::R1(I),XS(e)
      • S(e);S_CUTR(h)::R1(J),XP(i)
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Developed and maintained by Brian Stephenson.
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