MESON Chess Problem Database

Problem Display
PID: 75167 (6b1/8/8/2Rpp2p/Qp2k3/4N1P1/1rP1R1K1/B7 w - - 0 1)

Surkov, Ruslan Albertovich

1st HM., diagrammes, 2000

6b1/8/8/2Rpp2p/Qp2k3/4N1P1/1rP1R1K1/B7

#2

8 + 7

6166 FIDE Album (1998-2000) 2007

SOLUTION

  • SOUND
  • Sets
    • 1...Kd4
      • 2.Qxb4#
    • 1...Rxc2
      • 2.Qxc2#
  • Tries
    • 1.Sd1+?
      • 1...Kd4
        • 2.Qxb4#
      • 1...Kf5!
    • 1.Sf1+?
      • 1...Kd4
        • 2.Qxb4#
      • 1...Kf5!
    • 1.Sg4+?
      • 1...Kd4
        • 2.Qxb4#
      • 1...Kf5!
    • 1.Sxd5+?
      • 1...Kd4
        • 2.Qxb4#
      • 1...Kf5!
    • 1.Qb3?
      • threat
        • 2.Qd3#
      • 1...Kd4
        • 2.Qxb4#
      • 1...Rxc2
        • 2.Qxc2#
      • 1...Rxb3!
    • 1.Qd7?
      • threat
        • 2.Sf5#
      • 1...Kd4
        • 2.Rc4#
      • 1...Rxc2
        • 2.Qf5#
      • 1...Rb3
        • 2.Qf5#
      • 1...Be6!
    • 1.Qa6?
      • threat
        • 2.Qd3#
      • 1...Rxc2
        • 2.Qg6#
      • 1...Rb3
        • 2.Qg6#
      • 1...Kd4!
  • Keys
    • 1.Qc6!
      • threat
        • 2.Rc4#
      • 1...Kd4
        • 2.Sf5#
      • 1...Rxc2
        • 2.Qg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 0
  • Sets
    • K(c);P-FLIGHT,P_SPINR(a)::QAR2(G),XP(b)
    • R(a);OGATE,P_PINR(C),XP(B)::QAB(G),XR(a)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINR(a)::QAR2(G),XP(b)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINR(a)::QAR2(G),XP(b)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
    • Try
      • S(E);CHECK
      • Vars
        • K(c);P-FLIGHT,P_SPINR(a)::QAR2(G),XP(b)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
    • Try
      • S(E);CHECK,XP(d)
      • Vars
        • K(c);P-FLIGHT,P_SPINR(a)::QAR2(G),XP(b)
      • Refutation
        • K(c);N_SPINP(b),S_FLIGHT
    • Try
      • Q(G);N_PINP(b)
      • Threat
        • QAB1(G)
      • Vars
        • K(c);P-FLIGHT,P_SPINR(a)::QAR2(G),XP(b)
        • R(a);OGATE,P_PINR(C),XP(B)::QAB(G),XR(a)
      • Refutation
        • R(a);XQ(G)
    • Try
      • Q(G);N_PINP(b)
      • Threat
        • R(C)+S(E)
      • Vars
        • K(c);P-FLIGHT,P_SPINP(d),P_SPINR(a)::R1(H)
        • R(a);P_PINR(C),XP(B)::QAB1(G)
        • R(a);::QAB1(G)
      • Refutation
        • B(g);
    • Try
      • Q(G);N_PINP(b)
      • Threat
        • QAB1(G)
      • Vars
        • R(a);P_PINR(C),XP(B)::QAB(G)
        • R(a);::QAB(G)
      • Refutation
        • K(c);P-FLIGHT,P_SPINR(a)
  • Actual
    • Q(G);N_PINP(b),P_PINP(d)
    • Threat
      • R(H)
    • Vars
      • K(c);N_SPINP(d),P-FLIGHT,P_SPINR(a)::S(E)
      • R(a);P_PINR(C),XP(B)::QAB(G)
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