MESON Chess Problem Database

Problem Display
PID: 240088 (3R4/1B1K4/1N1N3p/2p3p1/1prk4/p1Rr1P2/bpP4Q/1n2n3 w - - 0 1)

Mosiashvili, Givi

Problemist Ukraini, 2017

3R4/1B1K4/1N1N3p/2p3p1/1prk4/p1Rr1P2/bpP4Q/1n2n3

#2

9 + 12

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rd1
      • 2.Sb5#
    • 1...Rd2
      • 2.Sb5#
    • 1...Rdxc3
      • 2.Sf5#
    • 1...Re3
      • 2.Sb5#
    • 1...Rxf3
      • 2.Sb5#
    • 1...Rcxc3
      • 2.Sf5#
    • 1...Sxc3
      • 2.Sf5#
    • 1...Sg2
      • 2.Rxd3#
    • 1...Sxf3
      • 2.Rxd3#
    • 1...bxc3
      • 2.Sf5#
  • Tries
    • 1.Rxc4+?
      • 1...Ke3
        • 2.Re8#
      • 1...Bxc4!
    • 1.Re8?
      • threat
        • 2.Sb5#
        • 2.Qe5#
      • 1...Sxc3
        • 2.Sf5#
        • 2.Qe5#
      • 1...Sxf3
        • 2.Sb5#
        • 2.Rxd3#
      • 1...Re3
        • 2.Sb5#
      • 1...Kxc3!
    • 1.Qe2?
      • threat
        • 2.Sb5#
      • 1...Sxc3
        • 2.Sf5#
      • 1...Re3
        • 2.Qxe3#
      • 1...Kxc3!
    • 1.Qf2+?
      • 1...Kxc3
        • 2.Sa4#
      • 1...Re3
        • 2.Qxe3#
      • 1...Ke5!
  • Keys
    • 1.Ke6!
      • threat
        • 2.Qe5#
      • 1...Re3+
        • 2.Se4#
      • 1...Rcxc3+
        • 2.Sdc4#
      • 1...Kxc3
        • 2.Sb5#
      • 1...Ke3
        • 2.Sf5#
      • 1...Sxf3
        • 2.Rxd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • R(f);::S(F)
    • R(f);SBLOCK,XR(C)::S(F)
    • R(f);XP(D)::S(F)
    • R(h);SBLOCK,XR(C)::S(F)
    • S(a);SBLOCK,XR(C)::S(F)
    • S(b);N_GUARD::R1(C),XR(f)
    • S(b);N_GUARD,XP(D)::R1(C),XR(f)
    • P(g);SBLOCK,XR(C)::S(F)
  • Tries
    • Try
      • R(C);CHECK,XR(h)
      • Vars
        • K(i);P_PINS(F),S_FLIGHT::R(I)
      • Refutation
        • B(c);XR(C)
    • Try
      • R(I);
      • Threat
        • DUALS(2)
      • Vars
        • R(f);::S(F)
      • Refutation
        • K(i);P_PINS(F),S_FLIGHT,XR(C)
    • Try
      • Q(B);
      • Threat
        • S(F)
      • Vars
        • S(a);SBLOCK,XR(C)::S(F)
        • R(f);N_GUARD::QAB1(B),XR(f)
      • Refutation
        • K(i);P_PINS(F),S_FLIGHT,XR(C)
    • Try
      • Q(B);CHECK
      • Vars
        • K(i);P_PINS(F),S_FLIGHT,XR(C)::S(E)
        • R(f);N_GUARD,P_SPINR(f)::QAB1(B),XR(f)
      • Refutation
        • K(i);P_PINS(F),S_FLIGHT
  • Actual
    • K(H);S_FLIGHT
    • Threat
      • QAB1(B)
    • Vars
      • R(f);CHECK::R(I)+S(F)
      • R(h);CHECK,SBLOCK,XR(C)::R(I)+S(F)
      • K(i);S_FLIGHT,XR(C)::S(F)
      • K(i);P_SPINR(f),S_FLIGHT::S(F)
      • S(b);N_GUARD,XP(D)::R1(C),XR(f)
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