MESON Chess Problem Database

Problem Display
PID: 104585 (8/2K5/3pNQp1/pN1k1b2/q1n2P2/B3PP2/B3n3/1R6 w - - 0 1)

Simkhovich, E

Shakhmatnaya kompozitsiya, 1992

8/2K5/3pNQp1/pN1k1b2/q1n2P2/B3PP2/B3n3/1R6

#2

10 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxb5
      • 2.Rxb5#
    • 1...Bh3
      • 2.e4#
    • 1...Bg4
      • 2.e4#
    • 1...Bxe6
      • 2.e4#
    • 1...Sc1
      • 2.Sc3#
    • 1...Sg1
      • 2.Sc3#
    • 1...Sc3
      • 2.Sxc3#
    • 1...Sg3
      • 2.Sc3#
    • 1...Sd4
      • 2.Sc3#
    • 1...Sxf4
      • 2.Sc3#
      • 2.Sxf4#
    • 1...g5
      • 2.Qxf5#
  • Tries
    • 1.Kb7?
      • threat
        • 2.Sbc7#
        • 2.Sec7#
      • 1...Qxb5+
        • 2.Rxb5#
      • 1...Qxa3
        • 2.Sbc7#
      • 1...Bxe6
        • 2.Sc7#
        • 2.e4#
      • 1...Qb3
        • 2.Sc7#
      • 1...Qb4!
    • 1.Sc5?
      • threat
        • 2.Qxd6#
      • 1...dxc5
        • 2.Qe5#
        • 2.Qc6#
        • 2.Qd6#
      • 1...Be6
        • 2.Qxe6#
        • 2.e4#
      • 1...Qb3!
    • 1.Rd1+?
      • 1...Bd3
        • 2.e4#
      • 1...Sd4
        • 2.Sc3#
        • 2.Rxd4#
      • 1...Qxd1!
  • Keys
    • 1.Kd7!
      • 1...Qxb5+
        • 2.Rxb5#
      • 1...Bxe6+
        • 2.Qxe6#
      • 1...Qxa3
        • 2.Sc7#
      • 1...Bxb1
        • 2.Sc7#
      • 1...Sxf4
        • 2.Qd4#
      • 1...Qd1
        • 2.Sc7#
      • 1...Qc2
        • 2.Sc7#
      • 1...Qb3
        • 2.Sc7#
      • 1...Qb4
        • 2.Sc7#
      • 1...Bc2
        • 2.Sc7#
      • 1...Bd3
        • 2.Sc7#
      • 1...Bh3
        • 2.e4#
      • 1...Be4
        • 2.Sc7#
      • 1...Bg4
        • 2.e4#
      • 1...Sc1
        • 2.Qd4#
      • 1...Sg1
        • 2.Qd4#
      • 1...Sc3
        • 2.Qd4#
      • 1...Sg3
        • 2.Qd4#
      • 1...Sd4
        • 2.Qxd4#
      • 1...g5
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 6
    • ADDED MATES = 10
    • REMOVED MATES = 0
  • Sets
    • Q(b);OGATE,XS(G)::R(A),XQ(b)
    • B(f);N_GUARD::P(D)
    • B(f);N_GUARD,XS(H)::P(D)
    • S(a);N_GUARD::S(G)
    • S(a);N_GUARD::S(G),XS(a)
    • P(h);N_GUARD::QAR2(I),XB(f)
  • Tries
    • Try
      • K(J);P-FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • Q(b);CHECK,OGATE,XS(G)::R(A),XQ(b)
        • Q(b);XB(C)::S(G)
        • Q(b);N_SPINS(c),P_PINS(G)::S(H)
      • Refutation
        • Q(b);P_PINS(G)
    • Try
      • S(H);
      • Threat
        • QAR1(I),XP(g)
      • Refutation
        • Q(b);N_SPINS(c)
    • Try
      • R(A);CHECK
      • Vars
        • B(f);P_SPINB(f)::P(D)
      • Refutation
        • Q(b);XR(A)
  • Actual
    • K(J);P-FLIGHT,P_SPINS(G)
    • Vars
      • Q(b);CHECK,OGATE,P_PINS(H),XS(G)::R(A),XQ(b)
      • B(f);CHECK,OGATE,XS(H)::QAB1(I),XB(f)
      • Q(b);N_PINS(G),P_PINS(H),XB(C)::S(G)
      • B(f);XR(A)::S(H)
      • S(a);N_GUARD,XP(F)::QAR1(I)
      • Q(b);N_PINS(G),P_PINS(H)::S(G)
      • Q(b);N_PINS(G),N_SPINS(c),P_PINS(H)::S(G)
      • B(f);::S(H)
      • B(f);N_GUARD::P(D)
      • S(a);N_GUARD::QAR1(I)
      • S(a);N_GUARD::QAR1(I),XS(a)
      • P(h);N_GUARD::QAR2(I),XB(f)
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