MESON Chess Problem Database

Problem Display
PID: 123031 (2q5/1pn5/1N2bBBN/b1p1r1pK/R5p1/1r2kp2/1pR2p2/3Q4 w - - 0 1)

Szekely, Sandor

Sinfonie Scacchistiche, 1970

2q5/1pn5/1N2bBBN/b1p1r1pK/R5p1/1r2kp2/1pR2p2/3Q4

#2

8 + 14

3713 Snap 2009
6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc3
      • 2.Qd2#
    • 1...Rd3
      • 2.Qxd3#
    • 1...Rb4
      • 2.Qd2#
    • 1...Rb5
      • 2.Qd3#
    • 1...Rxb6
      • 2.Qd3#
    • 1...Re4
      • 2.Rxe4#
    • 1...Rd5
      • 2.Re4#
    • 1...Rf5
      • 2.Sxg4#
    • 1...Bd2
      • 2.Qxd2#
    • 1...Bc3
      • 2.Qd3#
    • 1...Bxb6
      • 2.Qd2#
    • 1...Bf5
      • 2.Bxg5#
  • Tries
    • 1.Sc4+?
      • 1...Kf4
        • 2.Bxe5#
      • 1...Bxc4!
    • 1.Sf5+?
      • 1...Bxf5
        • 2.Bxg5#
      • 1...Rxf5!
    • 1.Rc3+?
      • 1...Bxc3
        • 2.Qd3#
      • 1...Rxc3!
  • Keys
    • 1.Qd6!
      • threat
        • 2.Qxe5#
      • 1...Rb4
        • 2.Qd2#
      • 1...Re4
        • 2.Rxe4#
      • 1...Rd5
        • 2.Sc4#
      • 1...Rf5
        • 2.Sxg4#
      • 1...Bc3
        • 2.Qd3#
      • 1...Bd5
        • 2.Qxc5#
      • 1...Bf5
        • 2.Bxg5#

Anticipated by 117140(1934)

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 6
  • Sets
    • R(c);S_CUTB(g)::QAB1(A)
    • R(c);N_GUARD::QAR1(A),XR(c)
    • R(c);N_GUARD::QAR1(A)
    • R(c);N_GUARD,XS(E)::QAR1(A)
    • R(i);N_GUARD::R1(C),XR(i)
    • R(i);N_GUARD::R1(C)
    • R(i);S_CUTB(k)::S(H),XP(f)
    • B(g);N_GUARD::QAB1(A),XB(g)
    • B(g);S_CUTR(c)::QAR1(A)
    • B(g);N_GUARD,XS(E)::QAB1(A)
    • B(k);S_CUTR(i)::B(F),XP(j)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(d);S_FLIGHT::B(F),XR(i)
      • Refutation
        • B(k);XS(E)
    • Try
      • S(H);CHECK
      • Vars
        • B(k);XS(H)::B(F),XP(j)
      • Refutation
        • R(i);XS(H)
    • Try
      • R(B);CHECK
      • Vars
        • B(g);XR(B)::QAR1(A)
      • Refutation
        • R(c);XR(B)
  • Actual
    • Q(A);
    • Threat
      • QAR2(A),XR(i)
    • Vars
      • R(c);S_CUTB(g)::QAB1(A)
      • R(i);N_GUARD::R1(C),XR(i)
      • R(i);S_CUTB(k)::S(E)
      • R(i);S_CUTB(k)::S(H),XP(f)
      • B(g);S_CUTR(c)::QAR1(A)
      • B(k);S_CUTR(i)::QAB(A),XP(h)
      • B(k);S_CUTR(i)::B(F),XP(j)
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