MESON Chess Problem Database

Problem Display
PID: 103454 (4K3/2QBR3/1pnP4/p2k1P2/b3p3/1RPPp3/4P3/8 w - - 0 1)

Antonov, Yuri Mikhailovich

Slovensky Dennik, 1991

4K3/2QBR3/1pnP4/p2k1P2/b3p3/1RPPp3/4P3/8

#2

10 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Kc5
      • 2.Re5#
    • 1...Bxb3
      • 2.Qxc6#
    • 1...Bb5
      • 2.Rxb5#
    • 1...Sb4
      • 2.dxe4#
    • 1...Sd4
      • 2.c4#
      • 2.dxe4#
    • 1...Sa7
      • 2.dxe4#
    • 1...Sb8
      • 2.dxe4#
    • 1...Sd8
      • 2.dxe4#
    • 1...b5
      • 2.Qxc6#
  • Tries
    • 1.Bxc6+?
      • 1...Kc5
        • 2.Re5#
      • 1...Bxc6+!
    • 1.Be6+?
      • 1...Kc5
        • 2.d4#
      • 1...Ke5!
    • 1.c4+?
      • 1...Kd4
        • 2.Qxb6#
      • 1...Kc5!
    • 1.d4?
      • threat
        • 2.Be6#
      • 1...Kc4
        • 2.Be6#
      • 1...Sxd4
        • 2.c4#
      • 1...Sb4
        • 2.Re5#
      • 1...Se5
        • 2.Rxe5#
      • 1...Sa7
        • 2.Re5#
      • 1...Sb8
        • 2.Re5#
      • 1...Sd8
        • 2.Re5#
      • 1...Sxe7!
  • Keys
    • 1.Rxe4!
      • 1...Kc5
        • 2.Re5#
      • 1...Bxb3
        • 2.Qxc6#
      • 1...Bb5
        • 2.Rxb5#
      • 1...Sb4
        • 2.c4#
      • 1...Sd4
        • 2.c4#
      • 1...Se5
        • 2.Rd4#
      • 1...Sa7
        • 2.c4#
      • 1...Se7
        • 2.c4#
      • 1...Sb8
        • 2.c4#
      • 1...Sd8
        • 2.c4#
      • 1...b5
        • 2.Qxc6#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 4
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(e);P-FLIGHT,P_SPINS(g)::R(I)
    • B(b);N_GUARD,XR(B)::QAB1(G),XS(g)
    • B(b);N_GUARD::R(B),XB(b)
    • S(g);P_PINB(H)::P(D),XP(c)
    • P(f);S_CUTB(b)::QAB1(G),XS(g)
  • Tries
    • Try
      • B(H);CHECK,P_SPINB(H),XS(g)
      • Vars
        • K(e);P-FLIGHT::R(I)
      • Refutation
        • B(b);CHECK,XB(H)
    • Try
      • B(H);CHECK
      • Vars
        • K(e);P-FLIGHT,P_SPINS(g)::P(D)
      • Refutation
        • K(e);P-FLIGHT
    • Try
      • P(C);CHECK
      • Vars
        • K(e);P-FLIGHT::QAB(G),XP(f)
      • Refutation
        • K(e);P-FLIGHT,P_SPINS(g)
    • Try
      • P(D);
      • Threat
        • B(H)
      • Vars
        • K(e);P_SPINS(g),S_FLIGHT::B(H)
        • S(g);P_PINB(H),SBLOCK,XP(D)::P(C)
        • S(g);N_GUARD,P_PINB(H)::R1(I)
        • S(g);N_GUARD,P_PINB(H)::R1(I),XS(g)
      • Refutation
        • S(g);P_PINB(H),XR(I)
  • Actual
    • R(I);XP(c)
    • Vars
      • K(e);P-FLIGHT,P_SPINS(g)::R(I)
      • B(b);N_GUARD,XR(B)::QAB1(G),XS(g)
      • B(b);N_GUARD::R(B),XB(b)
      • S(g);P_PINB(H)::P(C)
      • S(g);N_GUARD,P_PINB(H),SBLOCK::R1(I)
      • P(f);S_CUTB(b)::QAB1(G),XS(g)
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