MESON Chess Problem Database

Problem Display
PID: 67310 (B7/5pqn/1KP3r1/R4P2/4k1pN/R1B1P1P1/n3Q3/bbr5 w - - 0 1)

Pituk, Alexander

2nd Prize, SVTVS, 1954

B7/5pqn/1KP3r1/R4P2/4k1pN/R1B1P1P1/n3Q3/bbr5

#2

11 + 10

118 Szachy 1978
17177 Kompozicny Sach na Slovensku (Formanek) 1984

SOLUTION

  • SOUND
  • Sets
    • 1...Qd4+
      • 2.exd4#
    • 1...Qe5
      • 2.Rxe5#
    • 1...Qh6
      • 2.Re5#
    • 1...Qf8
      • 2.Re5#
    • 1...Qg8
      • 2.Re5#
    • 1...Rg5
      • 2.c7#
    • 1...Rxc6+
      • 2.Bxc6#
    • 1...Rf6
      • 2.Re5#
    • 1...Sf6
      • 2.Re5#
    • 1...f6
      • 2.c7#
  • Tries
    • 1.R3a4+?
      • 1...Qd4+
        • 2.Rxd4#
        • 2.exd4#
      • 1...Sb4!
    • 1.Qc4+?
      • 1...Qd4+
        • 2.Qxd4#
      • 1...Kxe3!
  • Keys
    • 1.Bf6!
      • threat
        • 2.Qg2#
      • 1...Rxc6+
        • 2.Bxc6#
      • 1...Bd4+
        • 2.exd4#
      • 1...Rf1
        • 2.c7#
      • 1...Rg1
        • 2.c7#
      • 1...Rc2
        • 2.Qd3#
      • 1...Rc3
        • 2.Re5#
      • 1...Bc3
        • 2.c7#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sc3
        • 2.Re5#
      • 1...Sg5
        • 2.Qxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 10
  • Sets
    • Q(i);CHECK,OGATE::QAR(A)+P(D),XQ(i)
    • Q(i);N_GUARD::R1(G),XQ(i)
    • Q(i);N_GUARD::R1(G)
    • R(g);N_PINP(J)::B(K)+P(J)
    • R(g);CHECK,OGATE,P_SPINR(g),XP(J)::B(K),XR(g)
    • R(g);S_CUTQ(i)::R1(G)
    • S(j);N_PINP(J),S_CUTQ(i)::R1(G)
    • P(h);N_PINP(J)::B(K)+P(J)
  • Tries
    • Try
      • R(B);CHECK
      • Refutation
        • S(d);P_SPINS(d)
    • Try
      • Q(A);CHECK
      • Vars
        • Q(i);CHECK,N_GUARD,P_SPINQ(i)::QAR1(A),XQ(i)
      • Refutation
        • K(e);P-FLIGHT,XP(D)
  • Actual
    • B(C);N_SPINP(J)
    • Threat
      • QAB(A)
    • Vars
      • R(c);CHECK,OGATE,P_SPINR(c),XP(J)::B(K),XR(c)
      • B(a);CHECK,OGATE::QAR(A)+P(D),XB(a)
      • R(c);N_GUARD::B(K)+P(J)
      • R(c);S_CUTB(b)::QAB1(A)
      • R(c);S_CUTB(a)::R1(G)
      • B(a);S_CUTR(c)::B(K)+P(J)
      • B(b);N_GUARD::QAB1(A),XB(b)
      • S(d);S_CUTB(a)::R1(G)
      • S(j);S_CUTR(g)::QAR2(A),XP(f)
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Developed and maintained by Brian Stephenson.
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