MESON Chess Problem Database

Problem Display
PID: 221796 (3Rr3/5b1B/5N2/1p1n4/4n3/1K1k4/1QR5/2B1b3 w - - 0 1)

Zamanov, Vidadi

ChessStar, 2013

3Rr3/5b1B/5N2/1p1n4/4n3/1K1k4/1QR5/2B1b3

#2

7 + 7

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Re6
      • 2.Rxd5#
    • 1...Rxd8
      • 2.Bxe4#
    • 1...Rf8
      • 2.Bxe4#
    • 1...Rg8
      • 2.Bxe4#
    • 1...Rh8
      • 2.Bxe4#
    • 1...Bf2
      • 2.Qc3#
    • 1...Bc3
      • 2.Qxc3#
    • 1...Bg3
      • 2.Qc3#
    • 1...Bh4
      • 2.Qc3#
    • 1...Bh5
      • 2.Rxd5#
    • 1...Be6
      • 2.Bxe4#
    • 1...Bg6
      • 2.Rxd5#
  • Tries
    • 1.Rd2+?
      • 1...Bxd2
        • 2.Qxd2#
      • 1...Ke3!
    • 1.Re2?
      • threat
        • 2.Re3#
      • 1...Rxd8
        • 2.Bxe4#
      • 1...Bd2
        • 2.Qxd2#
      • 1...Bf2
        • 2.Qd2#
      • 1...Bc3!
    • 1.Rc4?
      • threat
        • 2.Rd4#
        • 2.Qc2#
      • 1...Bd2
        • 2.Qxd2#
      • 1...Bf2
        • 2.Qc2#
        • 2.Qd2#
      • 1...Bc3
        • 2.Qc2#
      • 1...bxc4+!
  • Keys
    • 1.Rf2!
      • threat
        • 2.Rf3#
      • 1...Rxd8
        • 2.Bxe4#
      • 1...Bxf2
        • 2.Qd2#
      • 1...Bd2
        • 2.Qxd2#
      • 1...Bc3
        • 2.Qxc3#
      • 1...Bh5
        • 2.Rxd5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 8
  • Sets
    • R(g);S_CUTB(f)::R(G),XS(e)
    • R(g);N_GUARD,XR(G)::B(F),XS(c)
    • R(g);N_GUARD::B(F),XS(c)
    • B(a);N_GUARD::QAR1(B)
    • B(a);N_GUARD::QAR1(B),XB(a)
    • B(f);N_GUARD::R(G),XS(e)
    • B(f);S_CUTR(g)::B(F),XS(c)
    • B(f);N_GUARD,N_SPINS(c),P_SPINS(e)::R(G),XS(e)
  • Tries
    • Try
      • R(C);CHECK
      • Vars
        • B(a);OGATE,XR(C)::QAR1(B),XB(a)
      • Refutation
        • K(b);N_SPINS(c),P-FLIGHT
    • Try
      • R(C);
      • Threat
        • R1(C)
      • Vars
        • R(g);N_GUARD,XR(G)::B(F),XS(c)
        • B(a);N_GUARD::QAR1(B),XB(a)
        • B(a);N_GUARD::QAR1(B)
      • Refutation
        • B(a);
    • Try
      • R(C);
      • Threat
        • DUALS(2)
      • Vars
        • B(a);N_GUARD::QAR1(B),XB(a)
        • B(a);::QAB1(B)
      • Refutation
        • P(d);CHECK,XR(C)
  • Actual
    • R(C);
    • Threat
      • R(C)
    • Vars
      • R(g);N_GUARD,XR(G)::B(F),XS(c)
      • B(a);N_GUARD,XR(C)::QAR1(B)
      • B(a);N_GUARD::QAR1(B),XB(a)
      • B(f);N_GUARD::R(G),XS(e)
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