MESON Chess Problem Database

Problem Display
PID: 2766 (8/1KP1P1n1/1P2NP2/1k1NR3/3q1P2/2BPP3/1P6/1R1BbQ2 w - - 0 1)

Velimirovic, Milan

1st Prize, Mat, 1976

8/1KP1P1n1/1P2NP2/1k1NR3/3q1P2/2BPP3/1P6/1R1BbQ2

#2

16 + 4

3771 FIDE Album (1974-1976) 1980
4640 Chess Wizardry: The New ABC of Chess Problems 1996

SOLUTION

  • SOUND
  • Sets
    • 1...Qxe3
      • 2.Sxe3#
    • 1...Qxe5
      • 2.d4#
    • 1...Qxb6+
      • 2.Sxb6#
    • 1...Qxd3
      • 2.Qxd3#
    • 1...Qa4
      • 2.Sb4#
    • 1...Qb4
      • 2.Sxb4#
    • 1...Qc4
      • 2.dxc4#
    • 1...Qe4
      • 2.dxe4#
    • 1...Qxf4
      • 2.Sdxf4#
    • 1...Qxd5+
      • 2.Rxd5#
    • 1...Sf5
      • 2.e8Q#
      • 2.e8B#
    • 1...Sh5
      • 2.e8Q#
      • 2.e8B#
  • Tries
    • 1.Sb4+?
      • 1...Qc5
        • 2.Rxc5#
      • 1...Qd5+
        • 2.Rxd5#
      • 1...Qxe5!
    • 1.Ba4+?
      • 1...Qxa4
        • 2.Sb4#
      • 1...Kxa4!
    • 1.exd4?
      • threat
        • 2.Se3#
        • 2.Sb4#
      • 1...Sxe6
        • 2.e8Q#
        • 2.e8B#
      • 1...Bxc3!
  • Keys
    • 1.b4!
      • threat
        • 2.Sxd4#
      • 1...Qxb6+
        • 2.Sxb6#
      • 1...Qxd5+
        • 2.Rxd5#
      • 1...Qxc3
        • 2.Sxc3#
      • 1...Qxe3
        • 2.Sxe3#
      • 1...Qxe5
        • 2.d4#
      • 1...Qxd3
        • 2.Qxd3#
      • 1...Qxb4
        • 2.Sxb4#
      • 1...Qxf4
        • 2.Sdxf4#
      • 1...Bxc3
        • 2.Sxc3#
      • 1...Sxe6
        • 2.e8Q#
        • 2.e8B#
      • 1...Qc5
        • 2.bxc5#
      • 1...Qc4
        • 2.dxc4#
      • 1...Qe4
        • 2.dxe4#
      • 1...Sf5
        • 2.e8Q#
        • 2.e8B#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • Q(b);XP(G)::R(J)+S(I),XQ(b)
    • Q(b);OGATE,XR(J)::QAB(C)+P(F)
    • Q(b);CHECK,XP(K)::R(J)+S(I),XQ(b)
    • Q(b);OGATE,P_SPINQ(b),XP(F)::QAB(C),XQ(b)
    • Q(b);N_GUARD::R(J)+S(I)
    • Q(b);N_GUARD::R(J)+S(I),XQ(b)
    • Q(b);OGATE::P(F),XQ(b)
    • Q(b);OGATE,P_PINS(I)::QAB(C)+P(F),XQ(b)
    • Q(b);XP(H)::R(J)+S(I),XQ(b)
    • Q(b);CHECK,OGATE,P_SPINQ(b),XS(I)::R(J),XQ(b)
    • S(d);N_GUARD::P=Q
  • Tries
    • Try
      • S(I);CHECK
      • Vars
        • Q(b);N_GUARD,P_SPINQ(b)::R1(J),XQ(b)
        • Q(b);CHECK,N_GUARD,P_SPINQ(b)::R(J),XQ(b)
      • Refutation
        • Q(b);XR(J)
    • Try
      • B(B);CHECK
      • Vars
        • Q(b);SBLOCK,XB(B)::R(J)+S(I)
      • Refutation
        • K(c);S_FLIGHT,XB(B)
    • Try
      • P(G);XQ(b)
      • Threat
        • DUALS(2)
      • Vars
        • S(d);N_GUARD,XS(L)::P=Q
      • Refutation
        • B(a);XB(E)
  • Actual
    • P(D);
    • Threat
      • S(L),XQ(b)
    • Vars
      • Q(b);CHECK,XP(K)::R(J)+S(I),XQ(b)
      • Q(b);CHECK,OGATE,P_SPINQ(b),XS(I)::R(J),XQ(b)
      • Q(b);XB(E)::R(J)+S(I),DCHECK,XQ(b)
      • Q(b);XP(G)::R(J)+S(I),XQ(b)
      • Q(b);OGATE,XR(J)::QAB(C)+P(F)
      • Q(b);OGATE,P_SPINQ(b),XP(F)::QAB(C),XQ(b)
      • Q(b);P_SPINQ(b),XP(D)::R(J)+S(I),XQ(b)
      • Q(b);XP(H)::R(J)+S(I),XQ(b)
      • B(a);XB(E)::R(J)+S(I),DCHECK,XB(a)
      • S(d);N_GUARD,XS(L)::P=Q
      • Q(b);OGATE::R(A)+P(D),XQ(b)
      • Q(b);OGATE::P(F),XQ(b)
      • Q(b);OGATE,P_PINS(I)::QAB(C)+P(F),XQ(b)
      • S(d);N_GUARD::P=Q
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