MESON Chess Problem Database

Problem Display
PID: 244727 (6Bn/1P3rB1/3P1N2/2P3p1/1P1k4/1p4Q1/1RrN1Kn1/2R5 w - - 0 1)

Colaneri, Bruno

Sinfonie Scacchistiche, 2018

6Bn/1P3rB1/3P1N2/2P3p1/1P1k4/1p4Q1/1RrN1Kn1/2R5

#2

12 + 7

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxb2
      • 2.Rc4#
      • 2.Qc3#
    • 1...Rxd2+
      • 2.Rxd2#
    • 1...Rc3
      • 2.Qxc3#
    • 1...Rc4
      • 2.Sxb3#
      • 2.Rxc4#
    • 1...Rxc5
      • 2.Sxb3#
    • 1...Rxf6+
      • 2.Bxf6#
    • 1...Rxb7
      • 2.Sd7#
    • 1...Rc7
      • 2.Sd7#
    • 1...Rd7
      • 2.Sxd7#
    • 1...Se1
      • 2.Qe3#
    • 1...Se3
      • 2.Qxe3#
    • 1...Sf4
      • 2.Qe3#
    • 1...Sh4
      • 2.Qe3#
  • Tries
    • 1.Rcxc2?
      • threat
        • 2.Sxb3#
        • 2.Rc4#
        • 2.Qc3#
      • 1...Rxf6+
        • 2.Bxf6#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sf4
        • 2.Qc3#
        • 2.Qe3#
      • 1...bxc2!
    • 1.Rbxc2?
      • threat
        • 2.Sxb3#
        • 2.Rc4#
        • 2.Qc3#
      • 1...Rxf6+
        • 2.Bxf6#
      • 1...Se3
        • 2.Qxe3#
      • 1...Sf4
        • 2.Qc3#
        • 2.Qe3#
      • 1...b2
        • 2.Sb3#
        • 2.Rc4#
        • 2.Qc3#
      • 1...bxc2!
    • 1.Rxb3?
      • threat
        • 2.Rd3#
      • 1...Rxf6+
        • 2.Bxf6#
      • 1...Sf4
        • 2.Qe3#
      • 1...Rc3
        • 2.Qxc3#
      • 1...Se1
        • 2.Qe3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Rxd2+!
    • 1.Qd3+?
      • 1...Ke5
        • 2.Qe4#
      • 1...Kxd3!
  • Keys
    • 1.b8S!
      • threat
        • 2.Sc6#
      • 1...Rxd2+
        • 2.Rxd2#
      • 1...Rxf6+
        • 2.Bxf6#
      • 1...Rxc5
        • 2.Sxb3#
      • 1...Se3
        • 2.Qxe3#
      • 1...Rc7
        • 2.Sfd7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • R(a);CHECK,OGATE,P_PINS(I),XS(C)::R(B),XR(a)
    • R(a);N_GUARD,N_PINS(C),P_PINS(I)::QAB1(E),XR(a)
    • R(a);N_PINS(C),P_PINS(I),XP(G)::S(C),XP(c)
    • R(f);CHECK,OGATE,P_SPINR(f),XS(I)::B(K),XR(f)
    • R(f);XP(J)::B(K)+S(I)
    • R(f);::B(K)+S(I)
    • R(f);::B(K)+S(I),XR(f)
    • S(b);N_GUARD::QAB1(E)
    • S(b);N_GUARD::QAB1(E),XS(b)
  • Tries
    • Try
      • R(A);N_SPINS(C),P_SPINS(I),XR(a)
      • Threat
        • DUALS(3)
      • Vars
        • R(f);CHECK,OGATE,P_SPINR(f),XS(I)::B(K),XR(f)
        • S(b);N_GUARD::QAB1(E),XS(b)
      • Refutation
        • P(c);XR(A)
    • Try
      • R(B);N_SPINS(C),P_SPINS(I),XR(a)
      • Threat
        • DUALS(3)
      • Vars
        • R(f);CHECK,OGATE,P_SPINR(f),XS(I)::B(K),XR(f)
        • S(b);N_GUARD::QAB1(E),XS(b)
      • Refutation
        • P(c);XR(B)
    • Try
      • R(B);XP(c)
      • Threat
        • R1(B)
      • Vars
        • R(f);CHECK,OGATE,P_SPINR(f),XS(I)::B(K),XR(f)
        • S(b);N_GUARD::QAB1(E)
        • R(a);N_GUARD,N_PINS(C),P_PINS(I)::QAB1(E),XR(a)
        • S(b);N_GUARD::QAB1(E),XS(b)
      • Refutation
        • R(a);CHECK,P_PINS(I),XS(C)
    • Try
      • Q(E);CHECK
      • Vars
        • K(d);S_FLIGHT::QAR1(E)
      • Refutation
        • K(d);P-FLIGHT,XQ(E)
  • Actual
    • P(J);
    • Threat
      • S(J)
    • Vars
      • R(a);CHECK,OGATE,P_PINS(I),XS(C)::R(B),XR(a)
      • R(f);CHECK,OGATE,P_SPINR(f),XS(I)::B(K),XR(f)
      • R(a);N_PINS(C),P_PINS(I),XP(G)::S(C),XP(c)
      • S(b);N_GUARD::QAB1(E),XS(b)
      • R(f);::B(K)+S(I)
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