MESON Chess Problem Database

Problem Display
PID: 240518 (3R3B/5P1B/n2N4/1P6/QbpPPpp1/p1rk4/2R5/2KN4 w - - 0 1)

Pilchenko, Viacheslav Karlovich

Kudesnik, 2013

3R3B/5P1B/n2N4/1P6/QbpPPpp1/p1rk4/2R5/2KN4

#2

12 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Rxc2+
      • 2.Qxc2#
  • Tries
    • 1.Sf5?
      • threat
        • 2.Sf2#
      • 1...Rxc2+
        • 2.Qxc2#
      • 1...Kxe4
        • 2.Sh4#
      • 1...g3!
    • 1.Sb7?
      • threat
        • 2.e5#
      • 1...Rxc2+
        • 2.Qxc2#
      • 1...Sc5
        • 2.dxc5#
      • 1...Bd6!
    • 1.Sc8?
      • threat
        • 2.e5#
      • 1...Rxc2+
        • 2.Qxc2#
      • 1...Sc5
        • 2.dxc5#
      • 1...Bd6!
    • 1.Se8?
      • threat
        • 2.e5#
      • 1...Rxc2+
        • 2.Qxc2#
      • 1...Sc5
        • 2.dxc5#
      • 1...Bd6!
    • 1.Rxc3+?
      • 1...Bxc3
        • 2.Qc2#
        • 2.Qxc4#
      • 1...Ke2!
  • Keys
    • 1.Sxc4!
      • threat
        • 2.Se5#
      • 1...Rxc2+
        • 2.Qxc2#
      • 1...Kxc4
        • 2.Rxc3#
      • 1...Rxc4
        • 2.e5#
      • 1...Bd6
        • 2.Sf2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • R(b);CHECK,OGATE,XR(C)::QAB1(D),XR(b)
  • Tries
    • Try
      • S(H);
      • Threat
        • S(B)
      • Vars
        • R(b);CHECK,OGATE,XR(C)::QAB1(D),XR(b)
        • K(c);S_FLIGHT,XP(F)::B(J)+S(H)
      • Refutation
        • P(g);
    • Try
      • S(H);
      • Threat
        • B(J)+P(F)
      • Vars
        • R(b);CHECK,OGATE,XR(C)::QAB1(D),XR(b)
        • S(h);OGATE::R(K)+P(E),XS(h)
      • Refutation
        • B(d);
    • Try
      • S(H);
      • Threat
        • B(J)+P(F)
      • Vars
        • R(b);CHECK,OGATE,XR(C)::QAB1(D),XR(b)
        • S(h);OGATE::R(K)+P(E),XS(h)
      • Refutation
        • B(d);
    • Try
      • S(H);
      • Threat
        • B(J)+P(F)
      • Vars
        • R(b);CHECK,OGATE,XR(C)::QAB1(D),XR(b)
        • S(h);OGATE::R(K)+P(E),XS(h)
      • Refutation
        • B(d);
    • Try
      • R(C);CHECK,N_SPINR(C),XR(b)
      • Refutation
        • K(c);S_FLIGHT
  • Actual
    • S(H);XP(e)
    • Threat
      • S(H)
    • Vars
      • R(b);CHECK,OGATE,XR(C)::QAB1(D),XR(b)
      • K(c);P_SPINB(d),P_SPINR(b),S_FLIGHT,XS(H)::R1(C),XR(b)
      • R(b);XS(H)::B(J)+P(F)
      • B(d);::S(B)
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