MESON Chess Problem Database

Problem Display
PID: 160386 (B1b1R3/2P5/3pp1P1/3P2K1/R1ppkN2/4p2p/1NpPQ3/8 w - - 0 1)

Abdullayev, Suleyman

Velikhanov, Kenan

Match: Azerbaijan - Morocco, 2014

B1b1R3/2P5/3pp1P1/3P2K1/R1ppkN2/4p2p/1NpPQ3/8

#2

11 + 9

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Ba6
      • 2.Rxe6#
    • 1...Bb7
      • 2.Rxe6#
    • 1...c3
      • 2.Qxe3#
    • 1...d3
      • 2.Qxe3#
  • Tries
    • 1.Sxc4?
      • threat
        • 2.d3#
      • 1...d3
        • 2.Qxe3#
      • 1...c1S!
    • 1.Sfd3?
      • threat
        • 2.Qg4#
      • 1...cxd3
        • 2.Qxe3#
      • 1...e5
        • 2.Sf2#
      • 1...Bb7!
    • 1.Sxe6?
      • threat
        • 2.Sc5#
      • 1...Bxe6
        • 2.Rxe6#
      • 1...Bb7
        • 2.Sf4#
      • 1...d3
        • 2.Qxe3#
      • 1...Ke5!
    • 1.Qf3+?
      • 1...Ke5
        • 2.Sxc4#
      • 1...Kxf3!
    • 1.Qg2+?
      • 1...Ke5
        • 2.Sxc4#
      • 1...hxg2!
    • 1.d3+?
      • 1...Ke5
        • 2.Sxc4#
      • 1...cxd3!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Sfd3#
      • 1...Ke5
        • 2.Qf5#
      • 1...exd2
        • 2.Qe2#
      • 1...d3
        • 2.Sfxd3#
      • 1...Bb7
        • 2.Rxe6#
      • 1...e5
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(i);N_GUARD::R(K),XP(h)
    • P(d);S_CUTP(e)::QAR1(C),XP(b)
    • P(e);N_GUARD::QAR1(C),XP(b)
  • Tries
    • Try
      • S(A);XP(d)
      • Threat
        • P(B)
      • Vars
        • P(e);N_GUARD::QAR1(C),XP(b)
      • Refutation
        • P(a);
    • Try
      • S(E);
      • Threat
        • QAR2(C)
      • Vars
        • P(d);S_CUTP(e),XS(E)::QAR1(C),XP(b)
        • P(h);::S(E)
      • Refutation
        • B(i);
    • Try
      • S(E);XP(h)
      • Threat
        • R(K)+S(E),DCHECK
      • Vars
        • B(i);OGATE,P_SPINB(i),XS(E)::R(K),XB(i)
        • B(i);N_GUARD::R(K)+S(E)
        • P(e);N_GUARD::QAR1(C),XP(b)
      • Refutation
        • K(f);P-FLIGHT
    • Try
      • Q(C);CHECK,N_PINP(b),P_PINP(h)
      • Vars
        • K(f);P-FLIGHT::S(A),XP(d)
      • Refutation
        • K(f);N_SPINP(h),S_FLIGHT,XQ(C)
    • Try
      • Q(C);CHECK,N_PINP(b),P_PINP(h)
      • Vars
        • K(f);P-FLIGHT::S(A),XP(d)
      • Refutation
        • P(c);XQ(C)
    • Try
      • P(B);CHECK
      • Vars
        • K(f);P-FLIGHT::S(A),XP(d)
      • Refutation
        • P(d);XP(B)
  • Actual
    • Q(C);N_PINP(b),P_PINP(h)
    • Threat
      • QAR(C)+S(E)
    • Vars
      • K(f);P-FLIGHT::QAR1(C)
      • P(b);OGATEB,XP(B)::QAR2(C)
      • P(e);N_SPINP(h),P_SPINP(d)::QAR(C)+S(E),XP(e)
      • B(i);N_GUARD::R(K),XP(h)
      • P(h);SBLOCK::QAR(C)+S(E)
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